MTN not atteding to coverage complaint

We have POOR reception from our service provider MTN at our home. Our phones and tablets indicate EDGE only with 1 to 2 bars of signal strength. When you try to make or receive a call, you drop the call within the first minute of making or receiving it. It is impossible to use the internet with 1 to 2 bars of signal strength on EDGE. <br> <br> I have reported the problem to MTN Coverage Complaints division on numerous occasions over the last three months.<br> <br> The call centre people tell me the same story that \Andre"the field service technician responsible for the area and he will call me. It will take 12 working days to attend to......it is now 3 months and no call yet.<br> <br> I called this week and ask to speak to the manager David"