Phone signal is missing

This company has gotten bad and they know it. Since they claim they were improving the towers for better service my cell phone is useless. I can't use my phone for basic calls, messages without wifi in my home or someone else home wifi. Only if I need 911. The company lied to me several times over 3 months that it's my S22 Ultra I brought last year. But when I drive into certain areas/cities spots it works. Same places it works, but not in others. So I know it isn't my phone but the towers. It worked in my home for 3 years until they updated the towers. I will pay off my phone in one month and leave Tmoblie. They should be ashamed of themselves. I am paying for service that Tmobile isn't servicing me. My Spectrum home internet allows me to make phone calls and use data on my phone. So I am paying for services this company ISN'T providing!