They have very suspect practices. I've only been using the app for a short time. My first 2 fill ups gave me the correct cash back amounts. Since then Ive had 3 fill ups with no where close to the correct cash back amount. I just got gas and the price per gallon was the same in the app and at the pump. The offer was 26 cent cash back which I claimed and pumped. After pumping when I look in the history it's showing I'll only get 12 cent cash back per gallon. I'm regretting recommending friends.