diff --git a/SchengenVisaApi/ApplicationLayer/Services/AuthServices/RegisterService/Exceptions/UserAlreadyExistsException.cs b/SchengenVisaApi/ApplicationLayer/Services/AuthServices/RegisterService/Exceptions/UserAlreadyExistsException.cs
deleted file mode 100644
index b67668b..0000000
--- a/SchengenVisaApi/ApplicationLayer/Services/AuthServices/RegisterService/Exceptions/UserAlreadyExistsException.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-using ApplicationLayer.GeneralExceptions;
-using ApplicationLayer.Services.AuthServices.Requests;
-
-namespace ApplicationLayer.Services.AuthServices.RegisterService.Exceptions
-{
-    public class UserAlreadyExistsException(RegisterRequest request) : AlreadyExistsException($"User with email '{request.AuthData.Email}' already exists");
-}
diff --git a/SchengenVisaApi/ApplicationLayer/Services/GeneralExceptions/EntityUsedInDatabaseException.cs b/SchengenVisaApi/ApplicationLayer/Services/GeneralExceptions/EntityUsedInDatabaseException.cs
deleted file mode 100644
index 74c0a55..0000000
--- a/SchengenVisaApi/ApplicationLayer/Services/GeneralExceptions/EntityUsedInDatabaseException.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-using ApplicationLayer.GeneralExceptions;
-
-namespace ApplicationLayer.Services.GeneralExceptions
-{
-    /// Exception to throw when can't complete some action on entity(delete or something) because it's needed for other entities
-    public class EntityUsedInDatabaseException(string message) : ApiException(message);
-}
diff --git a/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Handlers/VisaApplicationRequestsHandler.cs b/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Handlers/VisaApplicationRequestsHandler.cs
index f2dba9a..a44b8b3 100644
--- a/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Handlers/VisaApplicationRequestsHandler.cs
+++ b/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Handlers/VisaApplicationRequestsHandler.cs
@@ -79,11 +79,9 @@ public class VisaApplicationRequestsHandler(
         var application = await applications.GetByIdAsync(applicationId, cancellationToken);
         if (application.Status != ApplicationStatus.Pending)
         {
-            //todo refactor exceptions
             throw new ApplicationAlreadyProcessedException();
         }
 
-        //todo handle exception or not
         ApplicationStatus statusToSet = status switch
         {
             AuthorityRequestStatuses.Approved => ApplicationStatus.Approved,