I was an AT&T customer for 20 years but I succumbed to TMobile’s advertising. I decided to switch to TMobile on the 14th November 2020 and how I regret it. I was assured that I would get 5G in my house. I do not. I only get one bar and the call quality is awful. I have called several times to try to get technical help but to no avail. There is nothing wrong with my phone. It is a brand new iPhone 12. The cell towers in my area need to be looked at by TMobile engineers. They do not work properly.If this situation is not resolved in 4 days, I will be switching back to AT&T.