Network Mast Installation

Hello Everyone, I need your help. How can I get MTN Nigeria to install a mast in my Area? We've had a very poor network for decades. I have to keep my phone very close to the window in order to make and receive calls, the moment I enter my room, the network bar goes blank. It's almost impossible to use the internet even on 2G network. I need guidelines please. Do they have portals for such applications?