But Shamir's card is universal in the whole country. Shamir has cooperated with many large companies to provide white-collar workers with spending cards, which can be used in all stores in the city where they live. This shopping card is unified and you can spend as much as you like. There are two kinds of bills of lading: one is a card. One is a coupon. The card can be used in several times, and it will be invalid when it is used up. The coupon can only be used once. You must buy something larger than the face value of the coupon, and don't give change.