Incorrect Billing

My wife's contract was upgraded in may, end of may, the invoice was very high, but we thought that it was because of the migration to a new contract.<br> <br> Received a sms with last month's invoice now, almost R 2 000 more than what it was supposed to be, call centre confirmed that my wife did not use all the data on the bundle and the free minutes, but she confirmed that the data and minutes were incorrectly billed as out of bundle rates<br> <br> Asking her when will this be resolve... she said she's logging it on their side, it will be at least 7 working days. They've made a hash of the new contract overnight, but I need to wait for 7 working days to get it resolved<br> <br> and I need to pay an account 3 time more than what it was supposed to be, until they can resolved it<br> <br> absolutely crazy, get someone else to do your billing, obviously you can't do it properly