Telkom taking 2 months to cancel a contract

My mobile contract which was taken via 8ta mobile in December 2013 came to an end in December 2015. I had to send in a form to cancel this contract which was done 14 January 2016. They have since sent me a mail which confirmed that they owe me a credit of about R700. <br> The contract has not been cancelled but converted to a prepaid line and they transferred the credit onto the Telkom account which I did not ask them to do.<br> Now the refund department doesn't take any direct calls and they have no knowledge as to when I will get my contract cancelled and when i will get refunded.<br> <br> Telkom''s service is gone from bad to worse and I will advise all of my friends to never have any dealings with Telkom!!!