Unfair treatment by MTN South Africa head office

I recently got my contract suspended after bringing it up to date. I was told that my debit order will be reinstated but it was not. When I queried this I recieved an email requesting early cancelation fee as I did not make payments. I paid the arrear amount and forwarded the proof of payment to MTN collections where it was allocated to the wrong account. I have been butting heads since the start of the month to get my contract unsuspended. I really would appreciate it if they can get their house in order as they are not complying with their contract prescripts and then want to blame the customer.