the problem of the one-year warranty of the iPhone

Hello, my name is Arkady, I’m from Ukraine, a year ago I flew to the United States and bought my first iPhone from T-Mobile, exactly a year and one day passed and the phone stopped working (only SOS mode.. everything else works great) I called to the 611 support service and they told me that the warranty had expired (this is my first iPhone.. no one told me that I need to extend the additional warranty) they can’t do anything and I just need to buy a new one.. today (11/03/23) I came with this problem in the Apple Store on Queens Boulevard, they carried out diagnostics and the Apple representative said that it was only a blocking on the part of the operator...PS: I have been your client for a year now, my monthly payment was more than 300 dollars.. I recommended your company to all my friends and clients.. I brought more than 10 friends and clients to your company.. I think that you have the wrong approach in this situation like mine..Best regards, Arkady