Originally Posted by
Majuki
It does indicate DCC preference, and Marriott properties in the UK all have DCC. (I've been hit before.) It's been awhile since I've seen the prompt, however. As a best practice, I preauth the room with an AmEx and then settle the bill with the card of choice. For Marriott properties, this is the SPG AmEx, so no card change is currently required. Before the merger, I would switch to the Chase Marriott card upon check out.
That makes the choice of alternate currency even more confusing. I would have thought that Marriott would know that I'm using a USD card by my online profile if nothing else. Maybe they just assume that most people staying there are from the EU?