MTN charge R4,940 on a fixed R499 contract!

My daughter has a 2 year fixed R499 per month contract. This contract includes some voice and data but when the limits are reached she has had to purchase additional voice or data. The monthly bills are always capped at R499. All of a sudden they deducted R4,179 for May and R4,940 for June from our current account!! <br> <br> The worst part is dealing with MTN and trying to sort their error out. They simply do not care that they have made this error and I was actually told that they are a very big company and that it takes time to sort admin problems out. This is theft pure and simple. I have dealt with Nic Pieterse and he put us onto his manager, one Unatiwobo. Neither of these MTN employees seem to care - all we have received is a standard mail saying that they are investigating. As we speak, they have now deducted an unauthorised amount for July as well.<br> <br> My suggestion:? stay well clear of MTN. They are nothing but a bunch of *******