Effective immediately,
AmEx cardmembers can use their existing americanexpress.com user ID and password to
open an Airbnb account; they can use Membership Rewards
program points to book a stay directly on Airbnb's site; and they can check out with
Amex Express Checkout.
The terms and conditions of this particular
program spell out that if you voluntarily cancel enrollment or cancel all linked accounts enrolled in the
program, but keep at least one
AmEx card
open and in good standing, you have up to 30 days from the date of cancellation to redeem the points accrued.