diff --git a/Elwig/Documents/BusinessDocument.cs b/Elwig/Documents/BusinessDocument.cs
index aa71b05..d863956 100644
--- a/Elwig/Documents/BusinessDocument.cs
+++ b/Elwig/Documents/BusinessDocument.cs
@@ -1,4 +1,5 @@
 using Elwig.Helpers;
+using Elwig.Models;
 using Elwig.Models.Entities;
 using System.Collections.Generic;
 using System.Globalization;
diff --git a/Elwig/Helpers/Export/Ebics.cs b/Elwig/Helpers/Export/Ebics.cs
index 30fc506..f566da7 100644
--- a/Elwig/Helpers/Export/Ebics.cs
+++ b/Elwig/Helpers/Export/Ebics.cs
@@ -1,8 +1,8 @@
+using Elwig.Models;
 using Elwig.Models.Dtos;
 using Elwig.Models.Entities;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Security;
diff --git a/Elwig/Models/Entities/BillingAddr.cs b/Elwig/Models/Entities/BillingAddr.cs
index fa0d9bc..3cb6842 100644
--- a/Elwig/Models/Entities/BillingAddr.cs
+++ b/Elwig/Models/Entities/BillingAddr.cs
@@ -1,4 +1,3 @@
-using Elwig.Helpers;
 using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
diff --git a/Elwig/Helpers/IAddress.cs b/Elwig/Models/IAddress.cs
similarity index 86%
rename from Elwig/Helpers/IAddress.cs
rename to Elwig/Models/IAddress.cs
index 75d8de6..4d01ef7 100644
--- a/Elwig/Helpers/IAddress.cs
+++ b/Elwig/Models/IAddress.cs
@@ -1,6 +1,6 @@
 using Elwig.Models.Entities;
 
-namespace Elwig.Helpers {
+namespace Elwig.Models {
     public interface IAddress {
         string Name { get; }
         string Address { get; }