Standard bank Legal Departments Inadequacy

I'm generally a person with lots of patients and understanding however Standard bank credit card department is by far the worst service ever. Had My credit card Handed over in August 2017 which i then settled on the 26 Sept 2017 after being contacted by the Attorneys. I then Received a paid up letter. Fast Forward 2020 the Credit Card Department says i still have an Outstanding balance and the account is sitting with MBD Attorneys and i will need to contact them. These are the same attorneys where the account was settled. After Contacting them they confirmed the account is settled on their side and i need to contact Standard bank and show them the Paid up letter. I've had a request raised *** which has already been escalated twice already and still haven't gotten a response to know the way forward. The only response i get from the Standard legal department is that i call the Attorneys (only to be told the same story over and over.) Every time i call i keep calling standard bank legal department and explaining the same situation i get the same response. The consistent inadequacy is really not solving my problem and want this issue fixed permanently.