T-Mobile Bait and Switch scam on December 2021 "Free" upgrade to IPhone13 + airpods

I was hit with almost the exact same thing. Mine was trade in my iPhone 11 and get $800 in credits on an iPhone 13, 13pro or 13 ProMax. When I sent my iPhone 11 in I was given a 250.00 credit that they put toward my phone bill, not the new iPhone 13 ProMax and now get a monthly installment credit of $19.17 for 30 months which is $575 not $800.00 Plus they offered free AirPods by charging me $130.00 and then told me that I would get a $130 visa card. The problem is that I was never told I had to go on line and fill out a requdest with a Promo code to get the $130. I just kept waiting for the visa card to arrive and when it didn't in three months I called and was told there was nothing they can do because the promo was over and I didn't submit my request in time.  I cant wait to switch over to AT&T