Mtn is a nightmare

Can someone please just assist me in fixing the issue below!!!!!

My reference number for my query is *** in the billing department and the query is for the number: *** (Name is Laykanne Powell/Coetzee).

I went to a store in East rand mall to cancel my contract and move over to pre paid. I made a payment of +- R11500.00 to cancel my contact however YOUR billing system has processed the cancelation amount 4 times meaning that according to your system I owe you R33 202.00.

So in all of this, I have been on the phone numerous times to get this seen to. The amount was rejected on my account, costing me R61 in rejection fees. Who in their right mind just has R33202 laying around in an account. I was then told I needed to go in store to pay this amount. Keeping in mind that I DO NOT owe you anything. After phoning on the 3rd, 6th, and 10th of Feb to enquire when the balance would reflect R0 on my account and all they can keep telling me is that there is a mass credit set for my account.

This is becoming absolutely ridiculous as I have paid up any money I owe mtn and yet your billing team or system still has not rectified the issue to reflect R0.

I then received an sms today to say that my outgoing phone calls would be suspended and when I phoned the issue was still not resolved.

I am at my wits end and would just like SOMEBODY to do their job and fix my account. On requesting the manager (Name: Baldwin) I was told I would receive a phone call between 24-48 hours. Are you kidding me??

Your service is absolutely disgusting... And after paying everything I owe I still have to deal with constant headaches and issues with MTN.

Please advise if someone can urgently assist me!!!