Bad service from MTN

I'm very much unhappy about the service im getting from MTN... my account was paid up with vvm where MTN had handed me over to. When i call mtn , they told me that i must pay R217 and i paid the amount.. i sent them the proof of payment along with a statement showing that the handed over balance was paid up with vvm. My frustration is that my status has not been upfated on MTN and i cant even get what im asking for, which is a paid up letter and to cancel this contract.... nNo one is calling me from MTN even after i gave them alternative numbers. All they do is to give me a lot of reference numbers saying that unfortunately i cannot speak to the legal department..... i want to cancel this contract, have my status updated and have a paid up letter... thats all im asking for. This is the reference number i got: 1- ********** 5818 My number is: ********** 740 ID: ********** 586089

I can be contacted on ********** 042