diff --git a/app/api/services/account.py b/app/api/services/account.py
index ae6511d..1574e4a 100644
--- a/app/api/services/account.py
+++ b/app/api/services/account.py
@@ -29,7 +29,8 @@ class AccountService(BaseService):
 
                 validated_data = AccountService.validate_data(data, UserSchema())
                 user_token = validated_data.get('token')
-                uid = validated_data.get('uid')
+                uid = str(validated_data.get('uid'))
+
                 member = Members.get_member_by_uid(uid)
 
                 # Simulate processing
diff --git a/app/models/members.py b/app/models/members.py
index 105693d..4b8f80d 100644
--- a/app/models/members.py
+++ b/app/models/members.py
@@ -50,9 +50,10 @@ class Members(db.Model):
             raise ValueError(f"Username =  {username} not found")
         return member
 
+    @classmethod
     def get_member_by_uid(cls, uid):
         """
-        Return an offer by its ID.
+        Return an offer by its UID.
         """
         member = cls.query.filter_by(uid=str(uid)).first()