Telkom Mobile Unauthorised debit.

I have been trying to talk to somebody in the Telkom Mobile office for 2 days now regarding my account. My debit order details were captured incorrectly and as a result it never went off my account for the last 2 months. I spoke to an operator on Sunday to arrange a payment plan and was told that I need to pay everything at once. When I said I can't do that they said they would refer my query to the back office and that somebody would contact me the next day. This is now 3 days later and in the meantime they have debited my account for the full amount (including the penalty fees for incomplete debits). Worst thing of all is I am still sitting without an internet connection and need it to work from home. I have even tried talking to an online agent and was totally ignored. I have logs of this conversation. I have had enough now. I want my money back so that we can talk about the payment plan we were supposed to talk about. I have other payments to make and can not afford to do it all now thanks to this.