Cancellation not being processed

I have sent a cancellation request to Telkom on the 26th October 2017. Sent all the documents through to ********** I then followed up with the call centre and was told it will be processed.

After receiving an account for December 2017, I followed up again on the 12th October 2017 and was told it would be escalated, I followed up again with the agent via email.

I have been billed for December and now have a bill again for January. Considering this service should have been cancelled a long time ago, I am really disappointed with the service of Telkom around this. I need to report this somewhere because surely this goes against something in the consumer protection act.