Inactive S/N on iPhone?

I did ask apple to fix the record and it was escalated, A week later they said this is the replacement phone and that unless the reseller is an authorized apple reseller (seller EcoCELL is not) apple supervisor said there is nothing they will do. My only option is to pay $450 for a used screen to be installed with no possible warranty. No repairs of any type are available for this phone by Apple or any authorized Apple repair process, Best buy, etc. If I return the phone there will be a 15% restocking fee regardless of any issue found. The phone is not reported as stolen, no record of theft of any sort was found, iCloud and find my iPhone is clear as described in the ad. It works with T-mobile sim as described in the ad. So I am boned if I return the phone or pay for an aftermarket repair, loose-loose situation for me. My other iPhone LCD type repairs had no issues like the iPhone 13 Pro oled screen. My advice DO NOT EVER BUY AN USED OLED APPLE TYPE iPhone! Apple has made it almost impossible and extremely costly to go outside of their system! They have you hostage if you use their latest iPhones, they own you....