METHOD AND SYSTEM FOR THE LOYALTY SERVICE ON SALES ITEMS FOR CREDIT CARD MEMBERS BY USING A PURCHASING CERTIFICATE NUMBER

摘要

A method and a system for providing a loyalty service for each sale item to a credit card member by using a purchase authentication number are provided to accumulate mileage/point to each card number, and reduce automatically all/part of a card payment amount by automatically analyzing the purchase authentication number, a card approval number/date, and coupon information for from the card member. A purchase authentication number(200) is obtained by scratching surface of a sticker provided when the user buys goods or uses a service. A credit card company server(300) processes a card approval request by connecting to an external device, such as a payment terminal of a member shop, and a computer through the wired/wireless network, and aggregates/calculates card payments of the member shop through a procedure for billing a card amount and purchasing card sales. A royalty server(400) provides the service such as the mileage/point or a coupon to a credit card member by automatically analyzing the card transaction details, and the coupon information including the purchase authentication number and the card approval number/date, and provides Internet information services related to royalty to the card member through a web page, an e-mail, or file transfer.