Overcharging, incorrect debits and misallocations.

After my pricelock contract ending, i decided to stay on a month to month. I then get an SMS stating that i need to pay my account but my account was debited already, so i call the call centre and the agent says that it was not allocated to my account.

Then a month later i get an SMS saying i need to pay R1112.50 which is not correct. I call the call centre again and the agent says that R149 needed to be credited to my account but was not. So now i have to pay the bill and hope and pray they will credit my account and deduct it from the next months payment.

Not sure how things are done over there. These errors should have been picked up by the accounts and finance departments.