Pitch below from the agency.
Brazilian airline company GOL created an online campaign to make its Facebook page jump from 12k fans to over 200k in less than three days â€“ becoming number 1 in the category. During the Valentinesâ€™ weekend a series of images containing empty seats were uploaded on the companyâ€™s wall, without warning. The first users to see the images and comment the seat numbers won a pair of return tickets to any of GOLâ€™s destinations.
Facebook don't technically allow this via their terms as part of a promotion but.... Facebook's policy is strict and there to stop spammers. However I dont feel this is spamming, it's a creative way to use their platform. And I hope Facebook loosen up a little and stop being so strict.
Also Facebook now don't require you to "like" before you can comment so there is no reason for a prize pig to actually like your page
Note: Gol did receive a warning in this case but the page (check out that crazy long URL) has continued onto 600,000+ fans with some great engagement.