struggling to cancel my MTN contract since October

I called in on 21 October (Ref#:***) with my first request to cancel the contract.<br> <br> I called in AGAIN on 14 November as I was top up with more airtime. The consultant said that the contract was not cancelled and confirmed that it will be cancelled after this call. (Ref#:***-Mathabo)<br> <br> Due to their extremely poor service I called again on 16 November to ensure that the contract was cancelled as promised. The contract was still NOT cancelled. I informed the consultant that they can reverse the airtime and I will not pay as I cancelled the contract on time. She then confirmed that I can keep the airtime and reverse the debit order at the bank (which I did) as they were at fault. She \ONCE AGAIN"confirmed that she definitely cancelled the contract and I will receive a sms notification by no later than 24 November. (Ref#:***-Itumeleng)<br> <br> I then called again 24 November 2015 and without fail"