Need a lawyer to terminate an MTN contract

My problem started when I tried to cancel my two contracts after their expiry date. I called *** and was told that a cancellation request had been sent and if I do not receive a confirmation sms within 48 hours I should call again. I didnt get the sms so I called again and was given ref number ***. I didn't receive the sms after 2 days so I called again and asked why the previous two requests were unsuccessful. She didn't know why but promised to help me (ref ***). Still nothing happened after 2 days and I called again (ref ***). Nothing happened and I called again after 2 days (ref ***). The last guy I spoke to gave me two direct numbers for the cancellation department *** and ***) but none of those lines are working. In frustration I took these ref numbers to my lawyer who advised that I shouldnt call MTN again as it costs money each time I call. Another colleague also confirms that without a lawyer you can never cancel and MTN contract. MTN should kindly receive this complaint as my official cancellation since you refused to do it. If you were planning to *******ly debit my bank account next month, be warned that its not going to happen