Failing to cancel contract on request or respond

I cancelled my MTN contract via call centre on 9 April. I requested confirmation over the phone that no further steps were required and my contract would be cancelled. I was told my contract would be cancelled.My sim card then stopped working the very next day. <br> <br> 2 weeks later, i received an email saying i needed to tell them if i wanted my number transferred to pre-paid, and they cannot cancel my contract until i tell them that. I had already answered that question clearly over the phone in the initial call to cancel the contract. <br> <br> I have responded and requested that MTN revert to their original commitment to cancel the contract. They continue to fail to respond to me<br> <br> Unfortunately, it looks like MTN cannot be trusted to be faithful to their commitments when it comes to