MTN South Africa Poor to No Data in JHB CBD

MTN what's happening to your service? Absolutely shocking! I leave in Parktown (JHB) and I have no data coverage. I called in and was told to do a SIM swop, I bought a new SIM to test this theory, and still NO data, My brother is also on MTN and he has the same issues in the area. After asking around Im told there is no signal in the area. This bad service started off with intermittent connectivity now its permanent. I never thought I will cancel my contract after 8 years with you guys but this is unacceptable. With or Without load shedding your data network is offline.