One of the worst service providers

I wrote a review last month about MTN, their service is so so so poor. They promised to solve the problem, now it's just getting worse. I can't even make a call, that's how bad their service is. I'm still using 2G, I have a contract with them, I'm even considering canceling it. I receive data every month which I forfeit for not using then. Which network still uses 2G, cos nowadays we have LTE, 4G, I can't pay for something I ain't getting good service. MTN improve your quality of network, or is it because we are not a surbub that's why you don't give a dam about the quality of network we getting.