Airtime and data disappears

I am so fed up with MTN its not even funny. My airtime and data disappears and it has been months now. When ever I call them they always come up with excuses that it is my applications or you can't reach them. I even restored my factory settings but still they same issue still happens. Even worse I have 3 contracts with MTN and in all those phones we have the same problem. MTN is just being ******** as even people I know are complaining about this network. In just one week, I have lost R150 worth of airtime as I recharge and in the same day the airtime disappears. I am just tired, All I want is to terminate all my contracts and I refuse to pay any termination fees as MTN has already reimbursed itself with the airtime and data that disappears. I can't even reach them these days, they are always experiencing high call volumes. This is just *****, MTN is really taking its customers for a ride. <br>