Many milk tea stores will launch points card activities, such as collecting ten medals, can be exchanged for a free cup, but customers often can not insist. This can be in the first consumption, the customer can directly give him five chapters. This gives him a psychological implication: wow, I've saved half of it, and five cups are free.

Points card is a consumer service card, made of PVC material, similar to the function, commonly used in shopping malls, supermarkets, stores, entertainment, catering, service and other industries.