Avoid MTN!!!

I did an online upgrade on a contract that I had from MTN for the last 20 years. Upon receiving my new phone, I transferred all info as I normally do with an upgrade, but for some reason I was not able to receive any incoming calls on my normal line, despite the fact that I am able to make calls. I contacted Client Service who took more than an hour to eventually was not able to assist. I went into my nearest mtn shop and was advised that I need to see the technical expert who was only available in two days. I returned after two days, to find out that he is still not back in the shop. The Manager of the Tygervalley branch then informed me that she believe it is a network issue and that the other consultants should have logged a request. She then logged a request and promised that it will be resolved in 48 hours. Running a business and being dependent on receiving calls, this was already a long time to wait. No surprise, going on 72 hours and had no feedback at all. Calling and emailing them, with no response!