First they ask you to authenticate with the first 8 digits of a Visa signature or Visa infinite card, and then they take you to a booking page.

The 25% discount is off of the Best Available Rate rate plan, which of course may not be the best available rate. Still, on a few random tests it appeared to be the lowest price room – lower than advance purchase rates and this rate is cancellable per the reservation’s cancellation deadline and not prepaid.

The rules do require payment at the hotel to be made with a qualifying Visa card, though that’s like a “your mileage may vary” requirement.

Offer is valid on bookings made by September 30.