FREE TummyZen Total Heartburn Relief Here's an easy freebie ;) Score a FREE 50ct. box of TummyZen Total Heartburn Relief with their mail-in rebate offer, a $10 freebie!! It's easy to score, just pick this product up in-store and hang on to the UPC and your receipt. Submit those items HERE and they'll shoot you info on how to finish up your rebate! You can earn up to $9.99 back by mail.. View Post