Originally Posted by
yyliu88
there is no need to register,
The “Stay and Get 5,000 Bonus Miles” promotion (the “Promotion”) is open to members, in good standing, of the Wyndham Rewards Guest Rewards Program (“Wyndham Rewards”) who have elected to earn bmi Diamond Club destinations miles in their member profile.
Thanks for the info. It's confusing because there's a "Register Now" button.