Signed for cancellation in January, still Paying

I went in to the store in Sandton and filled out the form to cancel my contract at the end of December 2014 as it was my understanding I needed to give 1 full months notice. My contract was due to end on the 31 of January. It is now the 3rd of November and I am still paying. i have tried to call numerous times and gone back into the store. Nothing helps and I am now at the stage where I am going to take them to the consumer counsel and lay a charge of theft, I have signed for the contract to be cancelled and that signature is my confirmation I no longer want anything to do with Telkom as is just shows how useless they are.