Pathetic service from MTN they are *******

Worst service ever. We canceled our contract with MTN the 9th of December. We confirmed the early cancelation fee, in writing and telephonic and paid it, confirming payment and cancelation of the contact. No further payments was deducted until suddenly mid January we got notification that R5000 will be deducted. We phoned the call center who advised this is an error and we do not owe any money. Imagine our surprise when at the end of January they never the less deduct R5000. We again phoned the call center and again we were told it was an error and they will refund the money within 14 days. Instead of a refund though, end of February they again deduct a further R 450? We again phone and again we are told mistake will pay back give us 14 days. Still nothing, now we phone again worried that they will deduct again. Now we're told, no the R5000 and R450 was correct and MTN owes us nothing!! The lady we spoke to did not want to hear anything and eventually hunged up the phone in our ear? We've send mails, logged formal complaints but nothing. As I'm writing this review we're busy logging a formal complaint with the consumer board. My advise to those outthere, stay far away from MTN.