Originally Posted by BigLar

So let me see...

You tried to book a room and they got one for you because you're a plat. OK.

Yes, if you have a confirmation, you have a room. If necessary, they will "walk" someone else (of lesser or no status) to make room for you.

I'm a little surprised (and amazed!) that they can exercise the Platinum Guarantee automatically from the website. I had thought you had to call to invoke the perk. What it is is, if you give them 48 hours notice, they will guarantee you a room. They won't guarantee the rate, though.