Woke up to a $15 off $20 coupon that has to be used today. After spending a half hour looking for food, I order. App says some nonsense about how you can't combine these forms of payment and to try again. Poof - the coupon is gone. Call customer support & they ask if I took a screenshot of the order on checkout. No. Who does that 🤨? Seems like GrubHub is up to some shady stuff to get you to look at their app again. Done with them. You should be too. Call your favorite restaurants to order. 👍