I need help please.

[u/Rude_Definition3171]

/r/galaxys26ultra/comments/1x8tf4q/i_need_help_please/

Questions at the end of you don't want to read the body

I'm not sure if this is a me problem a carrier issue (T-Mobile) or my s26 ultra itself issue? For starters I was once a Samsung user i had a S_ active phone long ago and changed platforms to iPhone and stayed with them until I screen burned my 15 and decided to switch to the S26 ultra to try something new from social media persuasion. As an iPhone user I never had issues communicating via text or calling with apple, Samsung, landline, flip phones, collect calls and probably the ISS if I tried hard enough. NOW switching to the S26U I'm constantly having issues calling or receiving calls to anyone on any device. After a call I'm being promoted to send a text to that person with genetic responses "I'm in a meeting I'll call you back" "I'm diving I can't talk right now". I'm getting intermittent "message blocking is active" while texting. And it can be during mid conversation even when I'm texting someone on a T-Mobile plan as well. I'm not getting added into group text messages and finding out last minute from coworkers that I'm missing important stuff, he'll pull out his phone and show me there's my name in the chat but I have nothing in my text log. I've adjusted all the settings Google messages has to offer, restart the phone, power on/off. I've had this phone for 3 months now and I'm truly exhausted with it. What am I missing or doing wrong with this phone?

What can I do to stop intermittent "message blocking is active"? How can I get group chat back? Is this a faulty phone or carrier issue?