No respomse for incoorct billing

Started calling end December to cancel this contact as it was expiring on 3rd January 2015 I followed up again on the 3rd, 5th and 12th and 27th January and today the 3rd of Feb. The contact has still not been cancelled but receive no confirmation thereof despite the operator telling me it has been actioned.<br> <br> Please refer to the incorrect billing below and numerous phone calls to have this account changed to prepaid.<br> <br> I have requested that my account, contract expired this January, be cancelled and changed to a prepaid account. I have made continued calls to have this cancelled and started notifying MTN that I will not be continuing this contract from early November. I have been told by the operator that it has been recorded and that this will be done. In December I had an outstanding balance and the account was suspended. I settled this amount , R217,66, on 5th January and again instructed that this contract is not to continue and must be transferred to prepaid and followed up on the 7th January ref ***. This has not been done and a contract charge has been processed again and I require you to reverses this charge and change this contract to prepaid with immediate effect