The program rewards you a free bag of food or litter, after the purchase of 12 bags in a 12-month period. The free item must be the same size as the prior 12 bags purchased. You may change the formula within size. There are two ways you can participate and earn a free bag of food or litter. 1. Shop online at LucyPetProducts.com/shop or 2. Purchase the 12 bags at a participating independent pet specialty retail store. Please note: To be eligible to redeem a free item, all 12 purchases must be made within the same channel (either all 12 online at LucyPetProducts.com or all 12 purchased in a pet store). We regret that we are unable to track purchases made in a pet store to apply toward online purchases. We are not able to apply purchases from other online websites toward the redemption of a free bag as part of the Lucy Pet Rewards Program.