The worst service provider in history

We have been strugling for two years to have my wifes phone sorted out which was a out of the box failure and for two years we have been passed around like a floor rag and told if we want to leave mtn we can and we have to pay in full now that we want to port her number we cant because she is still on contract on their system but on prepaid on her phone so further shafting her .my wife drives long distances and cannot phone or recieve calls the phone freezes . Resets . Crashes and simply doesnt function for most of the time . Thank you mtn for the worst service to one of your loyal customers who has been with you for over 10 years . I will personally make sure everybody i know move away from you that has contracts with you