MTN & MOBILE PLUS

MTN has been pestering me to 'upgrade' my contract for years. Eventually agreed. Asked for a contact number. When I called the supp**** number 'Mobiles Plus' answered. When I say answered, this is a 'call centre'. Did not get to speak to a real person, despite many attempts. Phoned MTN, requested that they cancel the contract (was assured that this was possible). MTN insisted that I speak to 'Mobiles Plus' and put me through to them. Hello, Mobiles Plus here! They agreed to cancel, but I am still waiting for confirmation? Now 2 weeks into this issue! I think this is ********** misrepresentation on MTN's part? I have cancelled twice, sent 3 e-mails, still not resolved. Inbox bombarded with Comms from MTN, all welcoming me to my 'NEW' service??? MTN, YOU ARE NOT DOING YOURSELF ANY FAVOURS!!!