Bad service from MTN

I have a data sim account (BA***) with mtn paying R199 a month, I have had this account for more than 8 years now. On the 1st of July, an amount of R698 was debited from my bank account by mtn. The same day I called the call center 135, to query why they had debited more than what I have ab agreement with them, I was told there was a new cellphone contract ( ***) that was taken up somewhere in cape town under my profile. I then registered a ***** case, sent affidavit and id copy as requested by the consultant i was talking to.

After submitting the documents through email, there was no response given, no reference number given. On he 12th of July I sent a follow up email and there was no response. On the 15th of July I forwarded my query and emails to customer care after which I recieved a reference number. When I called to follow up, was told to wait for a turn around time of 21 days, and on the 16th of August I sent a follow up email, and no response recieved, called 135 and I was told my case is still with the ***** department and I must call them on ***, which I called and the automated response told me to call 173.

On the 27th August I called 135 again to follow up, and was told the same that my case is with the ***** department and I shoucall the 083 number, I am being thrown from a pillar to pillar, whilst mtn is debiting my bank account, for the amount I have not budgeted for. Its now two months going to three months, no response from ***** or anyone from mtn, whilst I'm financially impacted.