AT&T rewards that aren't rewarding, part 2

As promised, the most fun AT&T rewards adventure deserves its own story. For other fun experiences leading up to this, see the earlier post. The mystery of the expiration date One of the cards had the expiration date of 12/2022. Fast-forward to the end of the year - Christmas, New Years, the whole thing. Admittedly, I was somewhat negligent in letting a balance linger on the card up to the very end. But then on Dec 31st I remembered that I had some money burning my pocket. Still time left, right? This is where things got interesting. I tried multiple different sites - Paypal, Amazon, Walmart - and in each case I was summarily rejected, informed that the expiration date was no good. For a moment there, my semi-intoxicated New Year's Eve mind briefly wondered whether I was a victim of computer servers which were 3 hours ahead, and therefore thought we'd entered 2023. But then I remembered: I was on the East Coast, and most servers ...