The cashback works great... when it works. A few months ago I could get cashback pretty much all the time, but for the past 5 weeks I claim & check in at the gas station and get no cashback, just a notification saying no proof of purchase. So for the little change I would get now I have to go inside and ask for a receipt every time I put gas and wait 7-10 days to reply to the notification email. Too much inconvenience to have a little change, not worthy the effort.