FED UP!!

up until now i have been very nice and for some reason 'understanding' towards MTN<br> i upgraded my contract for month of July and the debit order went off as it was supposed to.<br> Then during the month i received a message stating i have reached my credit limit and a further deduction of R700 odd will be taken.<br> MTN then proceeded to debit my account of R1200+ <br> I took this up with the branch in Durbanville where i had originally upgraded my contract. nobody could help me and needed to follow up with head office. i was later told that my contract was never upgraded on system and that's where the error had occurred. A refund could not be done but my account was now in credit and no debit would be due for the next 2 or so months. I previously followed up 3 weeks ago to find out if everything had been sorted and head office said they would get back to me I'M STILL WAITING!!!!. Of course September then came and i received another notice that R550 will be debited at the end of the month, and as i look at my account this morning i see the R550 was in fact taken off my account. i need answers and i want my refund where its due.<br> the 'assistance' I have received has been unacceptable