I booked Hilton Swinoujscie in June and Waldorf Astoria Versailles in July.. with the intention of taking advantage of the credits.. then I saw that Waldorf Astoria's price was lowered by €120 so I took it, not realising it was a pre-paid rate and I already paid it and am now seeing a $200 credit.
Do I have a shot at undoing the damage?