diff --git a/src/Infrastructure/BotSharp.Core/Users/Services/UserService.cs b/src/Infrastructure/BotSharp.Core/Users/Services/UserService.cs
index 45f22937..96447a90 100644
--- a/src/Infrastructure/BotSharp.Core/Users/Services/UserService.cs
+++ b/src/Infrastructure/BotSharp.Core/Users/Services/UserService.cs
@@ -548,7 +548,7 @@ public class UserService : IUserService
         }
 
         var db = _services.GetRequiredService<IBotSharpRepository>();
-        var UserByphone = db.GetUserByPhone(phone, regionCode);
+        var UserByphone = db.GetUserByPhone(phone, regionCode: regionCode);
         if (UserByphone != null && UserByphone.Verified)
         {
             return true;