MTN extremely poor response to network coverage

I have logged a call in last year September for very poor signal in the areas where I stay. I cannot hear a thing when I get phonecalls at home and none of my applications (Facebook, Watsapp, etc.) can be used as it does not update of allow me to send a text. I require my phone everyday for work purposes and often requires me to drive two streets away where there is better signal. This is so much time wasted and pathetic as the street is 2minutes away from where I stay. I am so sick and tired and very often frustrated as I have two contracts with them and I reported the problem many times before. I have even started calling on a weekly basis to put pressure on them to send out the technician. Everytime the call centre will tell me that Heinrich the technician will contact me shortly. This guy is still contacting me 6 months later. So many updates has been sent. What more do they want? This is not only me experiencing this problem, but all my mtn visitors. Ref#: *** picks up all the calls I have made and I have given them all the necessary info. needed. <br> The problem still persists and what worries me is the safety concern. I cannot make calls during crisis at home.