CANCELLATION OF MTN CONTRACT

Since 8 July 2015 I have been trying to cancel my ****le contract with MTN. I was quoted telephonically by the Call centre in July 2015 on the early cancellation fee and paid the +/- R800 the same day. I have logged several calls with MTN to allocate the payment to the cancellation of the contract. I have emailed proof of payment as well and Logged a complained on the MTN website. No feedback received. All the customer call centre agents keeps making promises and said it would take up to 10 working days. It is more than a month now, nearly two months and I am still paying my debit order. I went to a MTN shop this weekend and the agent confirms that there are problems at the Call centre relating to solving customer complaints. I need urgent attention to the cancellation of my contract.. My contract has still not been cancelled and the payment not allocated.