I called this location and asked if i could use my dairy queen rewards app, and the guy on the phone said it was fine as long as it synced into their computer. So then i proceeded to drive 15 minutes to their location. When i arrived at the drive thru, the guy at the window was extremely rude and said that i was only able to use the coupon if it was printed out. The app specifically says that you just need to show the cashier your phone and sync the app onto the locations computer. I then got out of my car and walked into the store to talk to the cashier who continued to be rude and then another guy came in who acted as if he was on something, and the both of them told me that i could not redeem my reward. I am extremely upset about this situation because i was given false information over the phone and i was not able to redeem my reward. I will definitely not be returning to this location and i don't recommend it to anyone else.