Poor customer service

I recently moved to a new area and that place seem to have a network coverage issue so I been calling the MTN network coverage service line as it was suggested to me by a consultant. It seems like every time I call in they all tell me one thing that my issue will be logged and they provide me a reference number and no action after that. It been 5 weeks now with just me following up and constantly being told that my issue will be logged. Now the sucky part is that I recently have a contract with MTN for 80GB that I can't use since I have no coverage. I'm disappointed.