Standard Bank refuses to issue paid up letter

I have been requesting a paid up letter on my Standard Bank Credit Card account that I settled in July. I have called, emailed, FBM over and over again and I am not getting any joy. I received a paid up letter 3 weeks ago but the account number on the letter is not correct. I emailed the agent back and still have not received a response. The courts are awaiting this documentation and I have run out of excuses. I require this letter by COB today, like i was promised last week, and the week before that and the week before that.....i honestly don't want to do business with you anymore and getting this letter and officially being able not have to deal with your company and its rude, unhelpful and arrogant agents will bring me so much joy. Please can we put this matter to bed as my next escalation won't be pretty