Cancellation of ADSL

I call 10210 on 6 Aug and cancelled my ADSL services and was told that I will only be paying R210 for line rental on the next debit order. This morning (27 Aug) I get billed for R577 which includes the ADSL. When I call Telkom I am told that I needed to give a months notice and even though I didn't use the service for the entire month I still had to pay for it! What **** is this!!! I did not budget for this and it was just debited off my account. Telkom is always doing this! Not very transparent with their billing process!!! <br> I want my money refunded because I have never used the service for a month! It was cancelled immediately! <br> I don't think I will ever use Telkom again! Pathetic!