Unauthorised billing after contract cancellation

Contract was cancelled in August 2014. From August 2015 monies were deducted off account on a monthly basis. The contract was for number ***, for the period 2013 - 2014.<br> Never received an Account for these transactions.<br> Immediately cancelled the agreement once again for buying data bundles. ref no. ***<br> Lodged a dispute ref no. ***4.<br> Further inquiries ref no. ***. Another query was logged, ref no. ***.<br> Outgoing services was suspended claiming that I owed them R5931.00.<br> After various queries and calls to MTN, no feedback or resolution has been received.<br> MTN is threatening with Legal action, currently services are suspended.