Problem with contract cancellation

I have two contracts with Telkom, 1st expired in November 2015 next will expire on 12 March 2016. I have submitted form to cancel first early in Dec at Telkom Shop in Amanzimtoti Durban. To date Telkom has not cancelled contract but have debited an extra R100 for same service that I had made clear I no longer need. On 8th February 2016 I resent the form via email and only received auto reply saying Telkom will call me in 48 hours. That never happened.<br> On same day I mailed another cancellation for my second contract set to expire on12/03/16. No response on this one as well.<br> On 21/02/16 I went back to Telkom in Galleria stood in queue for more than 1.5hours, only to be told my cancellation was never effected because they couldn't reach me after three attempts. I have not received any of their calls, and couldn't understand purpose for such communication, as customer I'm clear I want out of contract and I came in person to make that known to them. In the shop they made me speak to call center agent that was extremely unhelpful, she denied thatthey received my cancellation forms while the gentleman at the desk had already confirmed receipt, she refused to transfers me her supervisor.<br>