This app is horrible. It has so many glitches, but the most frustrating thing is that when you email support about a problem you've had, they want you to call their mobile team via telephone. I've done that previously, only to spend a half-hour on the phone with no resolution. When a customer emails you saying specifically that they used a coupon/deal in the app and it didn't work, why can't you just look at the user's activity and correct the error by crediting the rewards account?