Gatvol vir *****s!.!

Have an account at mtn for years now. Me and my wife is on a top up contract. The last few months we saw that no money has been put on my wife's phone. Have contacted mtn and received a text message they would look into the matter and call us back. Never received a call, but a text message saying it's been sorted out. Which was not. My wife took screenshots the day before she gets a R200 topop. And on the day she gets it. One month. She only got R1 topup. And then she also gets a text message that stated she has been topped up with R200. I feel they should only get R1. Cause the rest of the money is not there. That's *****ing. Why should I pay for a service I do not get.