will a unlocked sonim xp3 phone work for t-mobile after january 1 2022

Sprint/t-mobile offered to send free 5G capable phones to any subscriber whose phone was believed by them to be incapable of working on the t-mobile network after the end of May 2022.. when the 3G transmitters were turned off… or had Sprint  phones only CDMA capable.  They did in fact send me one free (an Alcatel GoFlip) to replace one of my two phones that they essentially killed.

I'm having a nightmare trying to get them to send the second replacement phone to me. One of the several catches I run into is to get a rep to work with me they have to send a verification text to my phone.. Of course that's the phone that they've disabled.   At this point over 4 hours on phone calls. still no phone.