Telkom refusing to cancel my service

Hello Peter

I am trying to cancel my ADSL service with Telkom, and after filling in the cancellation form and sending it to their email address for cancellations I still have not received any response, this was sent on 17 August. When I call their call centre they say they do not have a record of my email although I have received an acknowledgement reply from them.

What must one do now as I am expected to pay for a service that I no longer want, and the Telkom call centre is giving me a run around.