No response from cancellations

I requested my Telkom line to be cancelled on 12 November 2015. I completed the required form and emailed it together with a copy of my ID to [Email Removed] and received an automated response that I would be contacted within 48 to 72 hours. Having not received any response, I resubmitted all the documentation on 12 January 2016, but have still not had a formal response (I again received the automated response). I continue to be billed for the line rental monthly. <br> <br> Telkom - please advise how one goes about cancelling a landline service?