Frustrated

I am on anytime 350. This is the second time usage limit has been decreased to 0 with notice and I am left not able to make calls.<br> <br> I have requested cancellation if MTN is not able to provide service but it appears I have to pay huge cancelletation fees.<br> <br> Every week since the 19th of January I have to call MTN for roaming thats not working, contract line thats requesting me to top up or not able to make calls because of insufficient balance.'<br> <br> <br> I am stuck with no service and yet every month I am charged 900 rand every month for a contract line.<br> <br> Very Very angry customer.