In October I purchased an iphone 13 mini from apple. Their deal was -trade in an iphone X or newer and activate on tmobile for a trade in value of $230 on my Xr, and $200 in bill credits with tmobile, for a total of $430 off the iphone 13.

3 months later after many phone calls with tmo- didn't know about the promo, and tmo reaching out to Apple who couldn't give me info on how to get the promo code for t-mo ( says right in the details Apple would send the promo code in an email with the completed trade in).

2 plus hours on separate phone calls, being hung up on by Apple, I finally called Apple back and got Tina- who was able to give me the promo code within 2 minutes. WTF Apple and T-mo!