MTN ********

I regret taking contract with MTN all they do is **** people's hard earned money and its so painful because no one is willing to help can anyone please advice where I can get help from so I took contract for R299 now every month they taking R550 and I don't know for what because they suspended the simcard as they were saying I subscribed games on internet and the other reason was I had subscribed for air time and data and all that was canceled am in pain because I am not getting help from MTN Please advise on what to do