Charged unnecessary amounts

My contract expired last year August and I went into the Telkom branch in Lenasia in October to cancel the contract. I was given a cancellation form to complete and they took a copy of my ID. Now a few months has past and I am still billed. I also took a ADSL line contract around this time and now getting charged unnecessary charges for this as well for the period that the ADSL was not even activated. When I called your contact center on the 03 Jan the first person put the call down without assisting me. The second person acknowledged there was a mistake and created a case. I was informed that I should contact another Telkom number to sort out the other contract issue. I came into the Lenasia branch now and the lady acknowledged and remembered I cancelled my previous contract. This is a total mess and Telkom just keeps debiting my account. To add to this I was informed that I should pay an additional R465 if not they will suspend my line. This is ridiculous and Telkom owes me money and inconvenienced me and my entire day was wasted trying to sort this out. I want every single contract cancelled as the service with Telkom has been pathetic. And a company that *****s from your customers I do not want to be associated with.