Billing for device Out of Contract!!

<p>One of my contracts ended in January of this year and MTN is still billing me for the device. When I queried it with the call centre I was advised that I was not billed correctly since 2016 and they have to try reclaim the money. I have been trying to get hold of your cancellations department but no one ever answers the phone. This contract was taken out with Autopage and when they closed down and moved the contract over to MTN, then it was constant issues. I want this contract terminated with immediate effect and all my money refunded to me or credited to other MTN contract phone as you cannot charge me past the contract date. Your billing department is absolutley useless, this month I was billed late and now I have another issue my main business number.Your service is appaulling and I will be cancelling my other MTN number within the next few weeks. </p>