No stay required. Member must enroll with Enrollment Code PASHN or update profile with Promotion Code PASSION and opt-in for communications by June 30, 2011.
The 500 bonus miles will only be rewarded if you opt-in to receive communications from Fairmont President’s Club.
You have to enter your Aeroplan number on the “Airline Partner Programs” tab on the enrollment page, which is kind of hidden (you have to expand it). If you’re already a member, simply go to your profile and update your “Airline Partner Programs” with your Aeroplan information.