Poor service, query still unresolved

The worst service at the Sandton City office. The manager David is yet to solve the query. His staff is trying to solve this issue since July 2020. MTN continue to ***** money and bill me additional due to their changes which is actually their problem. I doubt anyone works at MTN. 2 months later and My money is still in their bank instead of mine. ***- only apologize but don’t understand how to solve the simple issue. Sandton city needs new staff and Mngt. Not a very good service delivery.