Try Dannon Activia for 14 days, and if it doesn't naturally regulate your digestive system, they'll refund the purchase price. Up to $12. Read more details here. Download the official form/details here here. I have to say that I absolutely LOVE rebates. Since they're almost always limited to 1 per household, I "pay" my family back for mailing me their coupons by putting rebates in their names as well. Four kids who love yogurt... you do the math. One time I even bought them the prune Activia - my husband felt badly for them. But here's the thing, they LOVED it.