The USA gets more than its fair share of discounts. Patience. These are hint as to what Anker is willing to do at current stock levels.
Be ready to buy swiftly, if its a substantive discount, like say 50% I’ve seen it go from 0% claimed to gone in < 2 hours in previous years. They hold only so much stock so even if Anker says its available for a given period of time, it can still sell out quickly.
I think your chances are good, if you use same 28% discount in USA as in UK then it is $42.99. The lowest price USA has seen has been $40, so that gives you a hint as the likely outcome, around $40. It’s possible for a 50% to make it $30 but probability is low and you’d have to act fast.