Call center gives very very bad service

I lodged a complain here last month about mtn not being available and nothing happened. This proves to me that mtn doesn't care about their customers, they only care about the money we give them. Whenever I go to any of their branches they tell me to call 808 and that number does not exist because it never goes through. I can't wait for my contract to end so I can go to reputable companies like vodacom.