MTN - NON SERVICE DELIVERY - FIVE WEEKS!

I work from home via the internet – to generate an income. We are going into the FIFTH week of no WiFi connection and I have thus been unable to work or make an income. I have phoned MTN Coverage and other departments almost daily and all I get told is that the towers are down. I have sent messages to MTN Messenger and that is even more frustrating. I have sent emails to MTN Complaints - five days ago... still waiting for a response!! Nothing has been done for FIVE weeks! I urgently need to get a professional internet connection and therefore need to cancel the MTN WiFi contract with immediate effect WITHOUT penalty, since it is not my fault that MTN does not deliver the service they promise. However, every person I have spoken to keeps telling me I need to pay a penalty and then passes me on to another department and then I get cut off and so on. MTN lack of interest or compassion is remarkable. I want immediate cancellation of my contract WITHOUT PENALTY. How long will it take MTN to respond... I wonder?