Changed my account details without my permission.

Mtn allowed my Internet Broadband Light account details to be changed without my permission in November last year<br> <br> After a process to correct this they **** to me telling me it was fixed. Each time I was in store stating that it was not resolved they stated that it was<br> <br> I had to drive to the store in Boksburg 3 times as their call center was not accessible<br> <br> Two months later a person at Mtn confirmed that they made a mistake and put this in writing. I have since cancelled my account but Mtn is still debiting my account each month. This is not acceptable practice as I am past my two year contract<br> <br> I have asked Mtn to pay me back but I keep getting passed onto someone else<br> <br> It's February already and the only e-mail I've received is that the Retentions Department has been notified<br> <br> I don't see how the Retentions Department can deal with a ***** Case or credit my account for the moneys taken without my permission<br> <br> Mtn isn't even interested in Investigating who the person is that did this. I've Investigated myself and found details surrounding this person<br> <br> This is poor Quality Management and even poorer Customer Service<br> <br> I'm speaking as a customer and Compliance Manager