diff --git a/Client/Modules/SZUAbsolventenverein.Module.PremiumArea/ModuleInfo.cs b/Client/Modules/SZUAbsolventenverein.Module.PremiumArea/ModuleInfo.cs
index f393a02..d066570 100644
--- a/Client/Modules/SZUAbsolventenverein.Module.PremiumArea/ModuleInfo.cs
+++ b/Client/Modules/SZUAbsolventenverein.Module.PremiumArea/ModuleInfo.cs
@@ -9,9 +9,9 @@ namespace SZUAbsolventenverein.Module.PremiumArea
         {
             Name = "PremiumArea",
             Description = "This module adds a premium member system to Octane. Users receive premium status after completing a payment. Premium members get access to exclusive features and content.",
-            Version = "1.0.0",
+            Version = "1.0.2",
             ServerManagerType = "SZUAbsolventenverein.Module.PremiumArea.Manager.PremiumAreaManager, SZUAbsolventenverein.Module.PremiumArea.Server.Oqtane",
-            ReleaseVersions = "1.0.0",
+            ReleaseVersions = "1.0.0,1.0.1,1.0.2",
             Dependencies = "SZUAbsolventenverein.Module.PremiumArea.Shared.Oqtane",
             PackageName = "SZUAbsolventenverein.Module.PremiumArea" 
         };
diff --git a/Server/Controllers/UserContactController.cs b/Server/Controllers/UserContactController.cs
new file mode 100644
index 0000000..e9eaaa3
--- /dev/null
+++ b/Server/Controllers/UserContactController.cs
@@ -0,0 +1,59 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Authorization;
+using System.Collections.Generic;
+using Microsoft.AspNetCore.Http;
+using Oqtane.Shared;
+using Oqtane.Enums;
+using Oqtane.Infrastructure;
+using SZUAbsolventenverein.Module.PremiumArea.Services;
+using Oqtane.Controllers;
+using System.Net;
+using System.Threading.Tasks;
+using Oqtane.Models;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Controllers
+{
+    [Route(ControllerRoutes.ApiRoute)]
+    public class UserContactController : ModuleControllerBase
+    {
+        private readonly IUserContactService _service;
+
+        public UserContactController(IUserContactService service, ILogManager logger, IHttpContextAccessor accessor) : base(logger, accessor)
+        {
+            _service = service;
+        }
+
+        // GET: api/<controller>/search/query?moduleid=x
+        [HttpGet("search/{query}")]
+        [Authorize(Policy = PolicyNames.ViewModule)]
+        public async Task<IEnumerable<User>> Search(string query, string moduleid)
+        {
+            int ModuleId;
+            if (int.TryParse(moduleid, out ModuleId) && IsAuthorizedEntityId(EntityNames.Module, ModuleId))
+            {
+                return await _service.SearchUsersAsync(query, ModuleId);
+            }
+            else
+            {
+                 HttpContext.Response.StatusCode = (int)HttpStatusCode.Forbidden;
+                 return null;
+            }
+        }
+
+        // POST: api/<controller>/send
+        [HttpPost("send")]
+        [Authorize(Policy = PolicyNames.ViewModule)] 
+        public async Task Send(int recipientId, string message, string moduleid)
+        {
+            int ModuleId;
+            if (int.TryParse(moduleid, out ModuleId) && IsAuthorizedEntityId(EntityNames.Module, ModuleId))
+            {
+                await _service.SendMessageAsync(recipientId, message, ModuleId);
+            }
+             else
+            {
+                 HttpContext.Response.StatusCode = (int)HttpStatusCode.Forbidden;
+            }
+        }
+    }
+}
diff --git a/Server/Migrations/01000001_AddPremiumTables.cs b/Server/Migrations/01000001_AddPremiumTables.cs
new file mode 100644
index 0000000..8aaeea6
--- /dev/null
+++ b/Server/Migrations/01000001_AddPremiumTables.cs
@@ -0,0 +1,42 @@
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Oqtane.Databases.Interfaces;
+using Oqtane.Migrations;
+using SZUAbsolventenverein.Module.PremiumArea.Migrations.EntityBuilders;
+using SZUAbsolventenverein.Module.PremiumArea.Repository;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Migrations
+{
+    [DbContext(typeof(PremiumAreaContext))]
+    [Migration("SZUAbsolventenverein.Module.PremiumArea.01.00.00.01")]
+    public class AddPremiumTables : MultiDatabaseMigration
+    {
+        public AddPremiumTables(IDatabase database) : base(database)
+        {
+        }
+
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            var engAppBuilder = new EngineerApplicationEntityBuilder(migrationBuilder, ActiveDatabase);
+            engAppBuilder.Create();
+
+            var userPremBuilder = new UserPremiumEntityBuilder(migrationBuilder, ActiveDatabase);
+            userPremBuilder.Create();
+
+            var premEventBuilder = new PremiumEventEntityBuilder(migrationBuilder, ActiveDatabase);
+            premEventBuilder.Create();
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            var engAppBuilder = new EngineerApplicationEntityBuilder(migrationBuilder, ActiveDatabase);
+            engAppBuilder.Drop();
+
+            var userPremBuilder = new UserPremiumEntityBuilder(migrationBuilder, ActiveDatabase);
+            userPremBuilder.Drop();
+
+            var premEventBuilder = new PremiumEventEntityBuilder(migrationBuilder, ActiveDatabase);
+            premEventBuilder.Drop();
+        }
+    }
+}
diff --git a/Server/Migrations/01000002_AddReportAndFileColumns.cs b/Server/Migrations/01000002_AddReportAndFileColumns.cs
new file mode 100644
index 0000000..ddba6c0
--- /dev/null
+++ b/Server/Migrations/01000002_AddReportAndFileColumns.cs
@@ -0,0 +1,90 @@
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Oqtane.Databases.Interfaces;
+using Oqtane.Migrations;
+using SZUAbsolventenverein.Module.PremiumArea.Migrations.EntityBuilders;
+using SZUAbsolventenverein.Module.PremiumArea.Repository;
+using System;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Migrations
+{
+    [DbContext(typeof(PremiumAreaContext))]
+    [Migration("SZUAbsolventenverein.Module.PremiumArea.01.00.00.02")]
+    public class AddReportAndFileColumns : MultiDatabaseMigration
+    {
+        public AddReportAndFileColumns(IDatabase database) : base(database)
+        {
+        }
+
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            // Add FileId (nullable int) - assuming missing
+            migrationBuilder.AddColumn<int>(
+                name: "FileId",
+                table: "SZUAbsolventenvereinEngineerApplications",
+                nullable: true);
+
+            // Add PdfFileName (string 256)
+            migrationBuilder.AddColumn<string>(
+                name: "PdfFileName",
+                table: "SZUAbsolventenvereinEngineerApplications",
+                maxLength: 256,
+                nullable: true);
+
+            // Add ApprovedOn (DateTime nullable) - might exist but adding if missing? 
+            // MigrationBuilder will fail if exists. We assume schema drift needs this.
+            // If it exists, user must handle.
+             migrationBuilder.AddColumn<DateTime>(
+                name: "ApprovedOn",
+                table: "SZUAbsolventenvereinEngineerApplications",
+                nullable: true);
+
+            // Add IsReported (bool not null default false)
+            migrationBuilder.AddColumn<bool>(
+                name: "IsReported",
+                table: "SZUAbsolventenvereinEngineerApplications",
+                nullable: false,
+                defaultValue: false);
+
+            // Add ReportReason (string max nullable)
+            migrationBuilder.AddColumn<string>(
+                name: "ReportReason",
+                table: "SZUAbsolventenvereinEngineerApplications",
+                nullable: true);
+
+            // Add ReportCount (int not null default 0)
+            migrationBuilder.AddColumn<int>(
+                name: "ReportCount",
+                table: "SZUAbsolventenvereinEngineerApplications",
+                nullable: false,
+                defaultValue: 0);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "IsReported",
+                table: "SZUAbsolventenvereinEngineerApplications");
+
+            migrationBuilder.DropColumn(
+                name: "ReportReason",
+                table: "SZUAbsolventenvereinEngineerApplications");
+
+            migrationBuilder.DropColumn(
+                name: "ReportCount",
+                table: "SZUAbsolventenvereinEngineerApplications");
+
+            migrationBuilder.DropColumn(
+                name: "FileId",
+                table: "SZUAbsolventenvereinEngineerApplications");
+
+            migrationBuilder.DropColumn(
+                name: "PdfFileName",
+                table: "SZUAbsolventenvereinEngineerApplications");
+                
+            migrationBuilder.DropColumn(
+                name: "ApprovedOn",
+                table: "SZUAbsolventenvereinEngineerApplications");
+        }
+    }
+}
diff --git a/Server/Migrations/EntityBuilders/EngineerApplicationEntityBuilder.cs b/Server/Migrations/EntityBuilders/EngineerApplicationEntityBuilder.cs
new file mode 100644
index 0000000..de7516d
--- /dev/null
+++ b/Server/Migrations/EntityBuilders/EngineerApplicationEntityBuilder.cs
@@ -0,0 +1,61 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Migrations.Operations;
+using Microsoft.EntityFrameworkCore.Migrations.Operations.Builders;
+using Oqtane.Databases.Interfaces;
+using Oqtane.Migrations;
+using Oqtane.Migrations.EntityBuilders;
+using SZUAbsolventenverein.Module.PremiumArea.Models;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Migrations.EntityBuilders
+{
+    public class EngineerApplicationEntityBuilder : AuditableBaseEntityBuilder<EngineerApplicationEntityBuilder>
+    {
+        private const string _entityTableName = "SZUAbsolventenvereinEngineerApplications";
+        private readonly PrimaryKey<EngineerApplicationEntityBuilder> _primaryKey = new("PK_SZUAbsolventenvereinEngineerApplications", x => x.ApplicationId);
+        private readonly ForeignKey<EngineerApplicationEntityBuilder> _moduleForeignKey = new("FK_SZUAbsolventenvereinEngineerApplications_Module", x => x.ModuleId, "Module", "ModuleId", ReferentialAction.Cascade);
+
+        public EngineerApplicationEntityBuilder(MigrationBuilder migrationBuilder, IDatabase database) : base(migrationBuilder, database)
+        {
+            EntityTableName = _entityTableName;
+            PrimaryKey = _primaryKey;
+            ForeignKeys.Add(_moduleForeignKey);
+        }
+
+        protected override EngineerApplicationEntityBuilder BuildTable(ColumnsBuilder table)
+        {
+            ApplicationId = AddAutoIncrementColumn(table, "ApplicationId");
+            UserId = AddIntegerColumn(table, "UserId");
+            ModuleId = AddIntegerColumn(table, "ModuleId");
+            FileId = AddIntegerColumn(table, "FileId", true);
+            PdfFileName = AddStringColumn(table, "PdfFileName", 256);
+            Status = AddStringColumn(table, "Status", 50);
+            AdminReviewedBy = AddIntegerColumn(table, "AdminReviewedBy", true);
+            AdminReviewedAt = AddDateTimeColumn(table, "AdminReviewedAt", true);
+            AdminNote = AddMaxStringColumn(table, "AdminNote");
+            SubmittedOn = AddDateTimeColumn(table, "SubmittedOn", true);
+            ApprovedOn = AddDateTimeColumn(table, "ApprovedOn", true);
+            IsReported = AddBooleanColumn(table, "IsReported", false);
+            ReportReason = AddMaxStringColumn(table, "ReportReason", true);
+            ReportCount = AddIntegerColumn(table, "ReportCount", false);
+            AddAuditableColumns(table);
+            return this;
+        }
+
+
+
+        public OperationBuilder<AddColumnOperation> ApplicationId { get; set; }
+        public OperationBuilder<AddColumnOperation> UserId { get; set; }
+        public OperationBuilder<AddColumnOperation> ModuleId { get; set; }
+        public OperationBuilder<AddColumnOperation> FileId { get; set; }
+        public OperationBuilder<AddColumnOperation> PdfFileName { get; set; }
+        public OperationBuilder<AddColumnOperation> Status { get; set; }
+        public OperationBuilder<AddColumnOperation> AdminReviewedBy { get; set; }
+        public OperationBuilder<AddColumnOperation> AdminReviewedAt { get; set; }
+        public OperationBuilder<AddColumnOperation> AdminNote { get; set; }
+        public OperationBuilder<AddColumnOperation> SubmittedOn { get; set; }
+        public OperationBuilder<AddColumnOperation> ApprovedOn { get; set; }
+        public OperationBuilder<AddColumnOperation> IsReported { get; set; }
+        public OperationBuilder<AddColumnOperation> ReportReason { get; set; }
+        public OperationBuilder<AddColumnOperation> ReportCount { get; set; }
+    }
+}
diff --git a/Server/Migrations/EntityBuilders/PremiumEventEntityBuilder.cs b/Server/Migrations/EntityBuilders/PremiumEventEntityBuilder.cs
new file mode 100644
index 0000000..863e9e2
--- /dev/null
+++ b/Server/Migrations/EntityBuilders/PremiumEventEntityBuilder.cs
@@ -0,0 +1,38 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Migrations.Operations;
+using Microsoft.EntityFrameworkCore.Migrations.Operations.Builders;
+using Oqtane.Databases.Interfaces;
+using Oqtane.Migrations;
+using Oqtane.Migrations.EntityBuilders;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Migrations.EntityBuilders
+{
+    public class PremiumEventEntityBuilder : AuditableBaseEntityBuilder<PremiumEventEntityBuilder>
+    {
+        private const string _entityTableName = "SZUAbsolventenvereinPremiumEvents";
+        private readonly PrimaryKey<PremiumEventEntityBuilder> _primaryKey = new("PK_SZUAbsolventenvereinPremiumEvents", x => x.Id);
+
+        public PremiumEventEntityBuilder(MigrationBuilder migrationBuilder, IDatabase database) : base(migrationBuilder, database)
+        {
+            EntityTableName = _entityTableName;
+            PrimaryKey = _primaryKey;
+        }
+
+        protected override PremiumEventEntityBuilder BuildTable(ColumnsBuilder table)
+        {
+            Id = AddAutoIncrementColumn(table, "Id");
+            UserId = AddIntegerColumn(table, "UserId");
+            DeltaDays = AddIntegerColumn(table, "DeltaDays");
+            Source = AddStringColumn(table, "Source", 50);
+            ReferenceId = AddMaxStringColumn(table, "ReferenceId");
+            AddAuditableColumns(table);
+            return this;
+        }
+
+        public OperationBuilder<AddColumnOperation> Id { get; set; }
+        public OperationBuilder<AddColumnOperation> UserId { get; set; }
+        public OperationBuilder<AddColumnOperation> DeltaDays { get; set; }
+        public OperationBuilder<AddColumnOperation> Source { get; set; }
+        public OperationBuilder<AddColumnOperation> ReferenceId { get; set; }
+    }
+}
diff --git a/Server/Migrations/EntityBuilders/UserPremiumEntityBuilder.cs b/Server/Migrations/EntityBuilders/UserPremiumEntityBuilder.cs
new file mode 100644
index 0000000..0134025
--- /dev/null
+++ b/Server/Migrations/EntityBuilders/UserPremiumEntityBuilder.cs
@@ -0,0 +1,36 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Migrations.Operations;
+using Microsoft.EntityFrameworkCore.Migrations.Operations.Builders;
+using Oqtane.Databases.Interfaces;
+using Oqtane.Migrations;
+using Oqtane.Migrations.EntityBuilders;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Migrations.EntityBuilders
+{
+    public class UserPremiumEntityBuilder : AuditableBaseEntityBuilder<UserPremiumEntityBuilder>
+    {
+        private const string _entityTableName = "SZUAbsolventenvereinUserPremium";
+        private readonly PrimaryKey<UserPremiumEntityBuilder> _primaryKey = new("PK_SZUAbsolventenvereinUserPremium", x => x.Id);
+
+        public UserPremiumEntityBuilder(MigrationBuilder migrationBuilder, IDatabase database) : base(migrationBuilder, database)
+        {
+            EntityTableName = _entityTableName;
+            PrimaryKey = _primaryKey;
+        }
+
+        protected override UserPremiumEntityBuilder BuildTable(ColumnsBuilder table)
+        {
+            Id = AddAutoIncrementColumn(table, "Id");
+            UserId = AddIntegerColumn(table, "UserId");
+            PremiumUntil = AddDateTimeColumn(table, "PremiumUntil", true);
+            Source = AddStringColumn(table, "Source", 50);
+            AddAuditableColumns(table);
+            return this;
+        }
+
+        public OperationBuilder<AddColumnOperation> Id { get; set; }
+        public OperationBuilder<AddColumnOperation> UserId { get; set; }
+        public OperationBuilder<AddColumnOperation> PremiumUntil { get; set; }
+        public OperationBuilder<AddColumnOperation> Source { get; set; }
+    }
+}
diff --git a/Server/Repository/EngineerApplicationRepository.cs b/Server/Repository/EngineerApplicationRepository.cs
new file mode 100644
index 0000000..c8a726b
--- /dev/null
+++ b/Server/Repository/EngineerApplicationRepository.cs
@@ -0,0 +1,83 @@
+using Microsoft.EntityFrameworkCore;
+using System.Linq;
+using System.Collections.Generic;
+using Oqtane.Modules;
+using SZUAbsolventenverein.Module.PremiumArea.Models;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Repository
+{
+    public interface IEngineerApplicationRepository
+    {
+        IEnumerable<EngineerApplication> GetEngineerApplications(int ModuleId);
+        IEnumerable<EngineerApplication> GetEngineerApplications(int ModuleId, string status);
+        EngineerApplication GetEngineerApplication(int ApplicationId);
+        EngineerApplication GetEngineerApplication(int ApplicationId, bool tracking);
+        EngineerApplication AddEngineerApplication(EngineerApplication EngineerApplication);
+        EngineerApplication UpdateEngineerApplication(EngineerApplication EngineerApplication);
+        void DeleteEngineerApplication(int ApplicationId);
+    }
+
+    public class EngineerApplicationRepository : IEngineerApplicationRepository, ITransientService
+    {
+        private readonly IDbContextFactory<PremiumAreaContext> _factory;
+
+        public EngineerApplicationRepository(IDbContextFactory<PremiumAreaContext> factory)
+        {
+            _factory = factory;
+        }
+
+        public IEnumerable<EngineerApplication> GetEngineerApplications(int ModuleId)
+        {
+            using var db = _factory.CreateDbContext();
+            return db.EngineerApplication.Where(item => item.ModuleId == ModuleId).ToList();
+        }
+
+        public IEnumerable<EngineerApplication> GetEngineerApplications(int ModuleId, string status)
+        {
+            using var db = _factory.CreateDbContext();
+            return db.EngineerApplication.Where(item => item.ModuleId == ModuleId && item.Status == status).ToList();
+        }
+
+        public EngineerApplication GetEngineerApplication(int ApplicationId)
+        {
+            return GetEngineerApplication(ApplicationId, true);
+        }
+
+        public EngineerApplication GetEngineerApplication(int ApplicationId, bool tracking)
+        {
+            using var db = _factory.CreateDbContext();
+            if (tracking)
+            {
+                return db.EngineerApplication.Find(ApplicationId);
+            }
+            else
+            {
+                return db.EngineerApplication.AsNoTracking().FirstOrDefault(item => item.ApplicationId == ApplicationId);
+            }
+        }
+
+        public EngineerApplication AddEngineerApplication(EngineerApplication EngineerApplication)
+        {
+            using var db = _factory.CreateDbContext();
+            db.EngineerApplication.Add(EngineerApplication);
+            db.SaveChanges();
+            return EngineerApplication;
+        }
+
+        public EngineerApplication UpdateEngineerApplication(EngineerApplication EngineerApplication)
+        {
+            using var db = _factory.CreateDbContext();
+            db.Entry(EngineerApplication).State = EntityState.Modified;
+            db.SaveChanges();
+            return EngineerApplication;
+        }
+
+        public void DeleteEngineerApplication(int ApplicationId)
+        {
+            using var db = _factory.CreateDbContext();
+            EngineerApplication EngineerApplication = db.EngineerApplication.Find(ApplicationId);
+            db.EngineerApplication.Remove(EngineerApplication);
+            db.SaveChanges();
+        }
+    }
+}
diff --git a/Server/Repository/PremiumAreaContext.cs b/Server/Repository/PremiumAreaContext.cs
index 8ac03c8..4d7b0bb 100644
--- a/Server/Repository/PremiumAreaContext.cs
+++ b/Server/Repository/PremiumAreaContext.cs
@@ -10,6 +10,9 @@ namespace SZUAbsolventenverein.Module.PremiumArea.Repository
     public class PremiumAreaContext : DBContextBase, ITransientService, IMultiDatabase
     {
         public virtual DbSet<Models.PremiumArea> PremiumArea { get; set; }
+        public virtual DbSet<Models.EngineerApplication> EngineerApplication { get; set; }
+        public virtual DbSet<Models.UserPremium> UserPremium { get; set; }
+        public virtual DbSet<Models.PremiumEvent> PremiumEvent { get; set; }
 
         public PremiumAreaContext(IDBContextDependencies DBContextDependencies) : base(DBContextDependencies)
         {
@@ -21,6 +24,9 @@ namespace SZUAbsolventenverein.Module.PremiumArea.Repository
             base.OnModelCreating(builder);
 
             builder.Entity<Models.PremiumArea>().ToTable(ActiveDatabase.RewriteName("SZUAbsolventenvereinPremiumArea"));
+            builder.Entity<Models.EngineerApplication>().ToTable(ActiveDatabase.RewriteName("SZUAbsolventenvereinEngineerApplications"));
+            builder.Entity<Models.UserPremium>().ToTable(ActiveDatabase.RewriteName("SZUAbsolventenvereinUserPremium"));
+            builder.Entity<Models.PremiumEvent>().ToTable(ActiveDatabase.RewriteName("SZUAbsolventenvereinPremiumEvents"));
         }
     }
 }
diff --git a/Server/Repository/UserPremiumRepository.cs b/Server/Repository/UserPremiumRepository.cs
new file mode 100644
index 0000000..1a58daf
--- /dev/null
+++ b/Server/Repository/UserPremiumRepository.cs
@@ -0,0 +1,60 @@
+using Microsoft.EntityFrameworkCore;
+using System.Linq;
+using System.Collections.Generic;
+using Oqtane.Modules;
+using SZUAbsolventenverein.Module.PremiumArea.Models;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Repository
+{
+    public interface IUserPremiumRepository
+    {
+        UserPremium GetUserPremium(int UserId);
+        UserPremium SaveUserPremium(UserPremium UserPremium);
+        void AddPremiumEvent(PremiumEvent premiumEvent);
+        IEnumerable<PremiumEvent> GetPremiumEvents(int UserId);
+    }
+
+    public class UserPremiumRepository : IUserPremiumRepository, ITransientService
+    {
+        private readonly IDbContextFactory<PremiumAreaContext> _factory;
+
+        public UserPremiumRepository(IDbContextFactory<PremiumAreaContext> factory)
+        {
+            _factory = factory;
+        }
+
+        public UserPremium GetUserPremium(int UserId)
+        {
+            using var db = _factory.CreateDbContext();
+            return db.UserPremium.FirstOrDefault(item => item.UserId == UserId);
+        }
+
+        public UserPremium SaveUserPremium(UserPremium UserPremium)
+        {
+            using var db = _factory.CreateDbContext();
+            if (UserPremium.Id > 0)
+            {
+                 db.Entry(UserPremium).State = EntityState.Modified;
+            }
+            else
+            {
+                db.UserPremium.Add(UserPremium);
+            }
+            db.SaveChanges();
+            return UserPremium;
+        }
+
+        public void AddPremiumEvent(PremiumEvent premiumEvent)
+        {
+            using var db = _factory.CreateDbContext();
+            db.PremiumEvent.Add(premiumEvent);
+            db.SaveChanges();
+        }
+
+        public IEnumerable<PremiumEvent> GetPremiumEvents(int UserId)
+        {
+            using var db = _factory.CreateDbContext();
+            return db.PremiumEvent.Where(item => item.UserId == UserId).OrderByDescending(x => x.CreatedOn).ToList();
+        }
+    }
+}
diff --git a/Shared/Models/EngineerApplication.cs b/Shared/Models/EngineerApplication.cs
new file mode 100644
index 0000000..f17468b
--- /dev/null
+++ b/Shared/Models/EngineerApplication.cs
@@ -0,0 +1,37 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using Oqtane.Models;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Models
+{
+    [Table("SZUAbsolventenvereinEngineerApplications")]
+    public class EngineerApplication : ModelBase
+    {
+        [Key]
+        public int ApplicationId { get; set; }
+        public int UserId { get; set; }
+        public int ModuleId { get; set; } // Context context
+
+        [Required]
+        public int? FileId { get; set; }
+
+        [StringLength(256)]
+        public string PdfFileName { get; set; }
+
+        public bool IsReported { get; set; }
+        public string ReportReason { get; set; }
+        public int ReportCount { get; set; }
+
+        // Status: "Draft", "Submitted", "Approved", "Rejected"
+        [StringLength(50)]
+        public string Status { get; set; } 
+
+        public int? AdminReviewedBy { get; set; }
+        public DateTime? AdminReviewedAt { get; set; }
+        public string AdminNote { get; set; }
+
+        public DateTime? SubmittedOn { get; set; }
+        public DateTime? ApprovedOn { get; set; }
+    }
+}
diff --git a/Shared/Models/PremiumEvent.cs b/Shared/Models/PremiumEvent.cs
new file mode 100644
index 0000000..df520c3
--- /dev/null
+++ b/Shared/Models/PremiumEvent.cs
@@ -0,0 +1,23 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using Oqtane.Models;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Models
+{
+    [Table("SZUAbsolventenvereinPremiumEvents")]
+    public class PremiumEvent : ModelBase
+    {
+        [Key]
+        public int Id { get; set; }
+
+        public int UserId { get; set; }
+        
+        public int DeltaDays { get; set; } // +365, etc.
+        
+        [StringLength(50)]
+        public string Source { get; set; } 
+        
+        public string ReferenceId { get; set; } // e.g. "AppId:12"
+    }
+}
diff --git a/Shared/Models/UserPremium.cs b/Shared/Models/UserPremium.cs
new file mode 100644
index 0000000..12ff3e9
--- /dev/null
+++ b/Shared/Models/UserPremium.cs
@@ -0,0 +1,21 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using Oqtane.Models;
+
+namespace SZUAbsolventenverein.Module.PremiumArea.Models
+{
+    [Table("SZUAbsolventenvereinUserPremium")]
+    public class UserPremium : ModelBase
+    {
+        [Key]
+        public int Id { get; set; }
+        
+        public int UserId { get; set; }
+        
+        public DateTime? PremiumUntil { get; set; }
+        
+        [StringLength(50)]
+        public string Source { get; set; } // "paid", "promo_engineer_application", "admin"
+    }
+}