Canceled my account and still being billed

I had a line with Telkom since last year June after about 12 months I decided to cancel the line via the call centre in June of this year but they advised I need to pay the outstanding amount and then log the cancelation with them, to which I agreed then I paid R500 less than what I was supposed to but agreed that I can cancel and just catch up with this rest, almost 6 months later and Telkom has been billing me like a normal customer without using their services and I made arrangements to pay it up I have enquired in store and been told they'll get back to me yet Telkom has don't anything to resolve the problem I called them in October spoke to someone there and she advised i don't have a landline account so please tell me why is my credit record reflecting differently?