iPhone 17 Pro will not active any esim Apple claims there's nothing wrong with it

iPhone 17 Pro will not active any esim. It stopped picking up cellular. I went into the store and they activated a new esim. Within 24 hours it stopped working again. Since then I have had numerous and long calls with AT&T and they have tried repeatedly to activate a new esim and the phone just will not activate. They said there is nothing more they can do so I contacted apple. Apple setup a return box so I could send it in for repair. They sent it back to me saying nothing was wrong so I went through the whole process of transferring my data back again from my spare phone. To no surprise the phone will not active. More time on the phone with AT&T and multiple attempts to activate the esim with no success. Called Apple and they've setup another return. This back and forth process is slow. The phone will not activate no matter what AT&T does. The problem is not with AT&T. If it had something to do with AT&T I would not have been able to transfer the phone service to my spare phone the first time and now a second time. I have at least 8 hours into this fiasco with support calls and transferring my phone data back and forth between the spare and my 17 pro.

Does anyone have any advice? Anyone else gone through this? I just got the phone around 3 months ago. It's not like it's old and beat up. They keep accusatorially asking me, is there any physical damage or liquid damage. No absolutely not. I take care of my phone. Any advice that would help me get this resolved would be great. Oh and they keep throwing it in my face I didn't buy the apple care warranty so I just have the basic warranty.