Poor signal quality

I reported the poor signal to MTN Planning & Quality department on various occasions (starting December 2014). Very poor cellphone reception and virtually no 3G. MTN keep telling me that someone will come test the signal, but they never arrive.That department only work during business hours and you HAVE to log the complaint from the address where you have the poor signal, so I cannot call them during the day, as I too am at work. The call has even been escalated to the department manager, who also has not been in contact with me. We have 4 devices at home with the same problem.<br> <br> PLEASE HELP.