Yes, they are.
Cash or credit card?
I want to use these coupons. Have they expired?
Not yet. Oh, Madam, this item is no longer on sale, and this goes on sale tomorrow. Will you take them?
Yes, could you use plastic bags?
Sure, it is 80 yuan in all and you have to give me another coupon.
Could you charge it to my credit card?
Here you are.
Okay. Input your pin number, please. Sign here.
Sure.
Here’s your receipt.
Thank you.