Failure to act on request to cancel MTN contract

Having endless frustration and disappointments with MTN to cancel my contract an convert it to prepaid. <br> <br> Now, MTNs call centre tell me I have reached my allowable number of times I can speak to a consultant and I now have to wait until the 1st of next month!! <br> <br> How arrogant of them!! <br> <br> It's because of their incompetence and failure to do as they told me they will do that I have to keep calling them back.