I have been overcharge on my MTN SA accounts since i upgraded in Oct 2008 to a MTN 100 Subscription. I am suppose to receive R100 value of calls off peak each month but i only receive a few calls @ R0.00 value and the rest of the calls they bill me for. Every month i have to phone them to receive a credit. Now i decided not to pay the Call Charges until they credit me, but now my calls has been suspended. I am so fedup with MTN!! I am still waiting for a credit on my bill dated 11/3/2010 and 11/4/2010!