Waiting responce since October 2014

I have called the call center in October 2014 to cancel two expired contracts this was not done. In November 2014 I went to the MTN shop In Fairland they then said the account is with legal and will send an email for someone to contact me . The Person that assisted me at he MTN shop tried for weeks to get someone to help me . I have called every month since then. My last call was today the 18-06-2015. I requested the switch board number to try and get some manager to assist me. I held on for over an hour. I am no better off then in November 2014. WHAT MUST I DO TO GET HELP!!!