Use a group purchase coupon to eat, what to say when you enter the door

Go in and say hello directly, I'm a group purchase, and the other party will understand, and then I'll ask you to say the coupon number password or something, and then wait for the food.

Go into the store and find the service desk, tell him that you are here to use the group purchase coupon to consume, and show him the group purchase confirmation information on the mobile phone, such as password and QR code.

Just say I'm from the ** group and tell him the number. It should be fine.