MTN Banking Department

I made a payment of R9000 to my account on the 23/11/2020 and I have been sent statement that I need to pay my account but I made a payment of R9000. Then I call the call Centre to try and sort it out and they tell me all they can do is ‘escalate’ the matter. The matter has been escalated 3 times now and I have sent all proof of payments etc that they could possibly need and yet the problem still hasn’t been resolved, useless I tell you. Last time I ever open up a contract with MTN. MTN banking department don’t know what they are doing and they obviously aren’t doing their job. Worst service EVER!!