I just got mine.. Had No Problem. U must be signed into FB and "Like" the page. Then click on the "I'll try it" button." They're givin away 12,500 coupons for dogs and 12,500 for cats.
Kept telling me to like, even after I did. Not happy!
worked for me you need a facebook account and be signed in
worked for me had to try a few times and it went through
says they have reached their limit of regirstrations
closed now from what I read