MTN doesnt want to Cancel My Contract

My Contract term ended at the end of February 2015, In the Beginning of April i contacted the 808 Call center to cancel and was advise it would be done in 7 days, this has not been done, i have called the 808 number almost every 2nd week with no success, i have also been to The GLEN branch MTN store and still no success. i get told every time that a representative from the cancellation department will call me. i received two calls and was advised on both that my contract is been cancelled as we speak.. this has not been done. i have now received my top-up data and airtime for the month. i have now decided to place a Stop order on my entire MTN Account and will do an EFT for my 2nd contract as i cannot pay another months contract subscription.<br> <br> Regards