Tracked by Evreward since 2008, Serengeti offers coupons, cash back rebates and rewards, with savings as high as 15% off. Serengeti discount coupons are rare, only available once or twice a year, and can be less valuable than similar merchants. Even when Serengeti doesn't have a coupon, you can always get up to 10% cash back, and other great rewards, with every purchase.