Thanks so much for reaching out. Are you using a T-Mobile branded device? Are you having this issue in areas outside of your home? Is your home marked for good coverage? We'll most often see this in areas that *should* have great coverage with non branded devices, but if that's not the case here, we will certainly do more digging!
Hey do you know anyone else with coverage issues in the effected area? Are you having service issues indoors or out and as asked before what device are you using. If it is a T-mobile phone have you tried calling in to see if there is a outrage or work being done in the area that could be causing the service issues?
Have you taken a look at the previous posts? Just wanted to see if you still need some help. Please keep us posted. Thanks!