Incorrect expiry date

I have laid this complaint before and was told by TIM from MTN complaints department to fax through my contract to him which was done on the 15th of December 2015. to date nothing has been done about my contract. I am now paying for something that is no longer under warranty and that should have expired on the 26th of December 2015. i have spoken to many call center agents and no one can assist in a phone number or email address to liaise with regards to my incorrect activation date. <br>