| 摘要 |
PURPOSE: A method for purchasing a claim discount product by issuing a coupon is provided to enable a consumer to purchase a specific target product at a discounted price regardless of the number of purchasers. CONSTITUTION: A consumer loads a product purchase window(301). The consumer inputs an authentication number of a pre-issued coupon into an authentication number input form of the product purchase window(303). The consumer pays for a product on a payment system by using a credit card(305). The payment system compares the inputted authentication number with an authentication number database of a coupon server. When the authentication number is confirmed, the payment system applies a discount to the claim of credit card charges(310). [Reference numerals] (301) Loading a product purchase window; (303) Inputting a coupon authentication number; (305) Paying for purchase money; (307) Applying a discount; (308) Charging a normal price; (309) Creating payment data about a discounted price; (310) Adjusting the discounted price with a card company and applying the discount when charging a card payment |
