No response on queries

We have very bad signal where we stay. After putting in multiple requests for mtn to come check to see if a plan can be made we finally got someone out. He said our signal is very bad and that we needed signal improving equipment. We filled out the forms and emailed them. Waited two months just to find out we need to send the forms again. This time we got confirmation that they received it. I have now asked multiple times over the last month and a half that they please update me as to where in the process we are, but my emails just gets ignored. Our signal is horrid and we actually have to drive 2km to send a simple email. Some days we don't even have voice signal. Seeing that this is our only form of communication I think you have failed in customer service mtn!