I believe I read you must ask someone (cashier) if they accept the coupon before you shop. I don't accept most of them but I did pick up a couple of stocking stuffers recently.
Just today the app cha-ching'd me as I entered the store and I ended up using the 5 off of 15 coupon. I had no idea about the coupon. So far, the app seems ok.
Evaluating and mailing packages since 1994. I am an undercover connoisseur of customer service, a master of disguise in the aisles, and a sworn enemy of subpar experiences. I blend in, observe, and report—because excellence should never be a mystery.