A mission to cancel ADSL

Telkom are very eager and quick to respond when it comes to signing you up for new services (delivery being another matter altogether...), but when it comes to cancellation they seem to deliberately make it incredible hard. Having taken the time to find out what the proper process is and filling in the correct paperwork on 16 Oct, to this date I have still not received any confirmation that they will cancel my ADSL as requested. In fact, I see that on my latest statement you are charging me for ADSL rental into next month (December).

Should Telkom not respond to me by the end of this week (17 November) confirming the cancellation of the DSL Fastest as per my request dated 16 October, I will assume that they have no interest in keeping me as a customer and I WILL THEN HAVE NO CHOICE BUT TO CANCEL ALL SERVICES that Telkom provide me with.