There are three reasons. There are three reasons why Longhua take-away coupons can't be used.

1. The coupon has expired.

2. The goods purchased are not within the scope of use of the coupons.

3. The user's equipment may have other mutually exclusive benefits, and some merchants specify that they cannot enjoy more than two benefits. Therefore, before using coupons, you should carefully follow the rules of using coupons and use them according to the rules.