Galaxy watch 5

Back in September 2022 I went to T-Mobile to order the Galaxy Watch and I am 99% sure that during the time the watch was on sale or maybe it was a promotion going on for it. I walked in the store and told the sales rep that I wanted the Galaxy watch and when asked which one, I stated the one that was on sale. They immediately knew which watch I was referring to. I just found out that I did not get the watch for the promotion/sales price but I am paying full price for it. When I spoke to someone about it, they had no idea what promotion I was talking about because they can't see any of the past promotions and so I am stuck paying the full price for the watch. Do anyone know which promotion was going on at that time? Maybe with a little bit more information, I can get a discount on the remaining balance.