Is it a good thing or a bad thing to wipe zero on customers?

1 Generally, but it depends on the actual situation.

Give the customer some change. Usually in small restaurants, in order to attract customers, customers will be given some change or discounts or coupons. Generally, hotels are chain stores. Guests should be given a discount after joining the club, and the points will be discounted after accumulation. Usually, coupons will be given, customers will be satisfied with the service, or just registered members will be given discounts.