TELKOM CANCELLATION

I have been trying to cancel my Telkom LTE account. I have sent through the cancellation documents as well as my ID and received an email that someone will contact me and I have not received any feedback from Telkom since. My Telkom Mobile account has expired and I gave them 30 days notice on 9 November 2015 with no response. I phoned the customer service centre twice and a call was logged on 01/01/2016 and 12/01/2016 and still no response, I was also informed to email my documentation again to the cancellations department the second time I phoned. My last deduction should have been end of December but because of Telkom not cancelling my contract it is still active.