MTN DISGUSTING SERVICE - Going back to Vodacom

MTN Customer service is pathetic. Since last week wednesday I have been unable to make calls from my MTN contract cellphone. I was in an emergency situation, and when i tried to dial out of my "MTN contract phone" I was told that i had insufficient airtime. Since then i have been calling MTN customer care no. 135 daily and sometime even twice a day - they were NOT able to assist me. I even went into MTN store and spoke to 2 managers also could not assist me. ALl they kept saying is that they have logged a query and the technical dept. needs to investigate it. Today almost a week later and i am still unable to make calls. I was told by an MTN employee to load airtime. Why should i load airtime when i am paying my account every single month so that i can make calls. MTN is *****ing my money as they are getting paid for a service they are NOT delivering. This is ridiculous. Till now the so-called customer care managers have still not called me back, one of the managers promised to send me free minutes but i have NOT received anything. I still cannot make calls on my "MTN CONTRACT PHONE" MTN SUCKS!!!