SYSTEM FOR PROVIDING CASH-BACK SERVICE USING MULTI-CARD

摘要

PURPOSE: A system for providing a cash-back service using a multi-card is provided to activate the cash-back and increase the buying desire of a user by providing the accumulation money of a constant ratio in the real-time if the user generates a credit transaction using a credit card. CONSTITUTION: A user terminal(100) includes a card reader for reading the multi-card(101), and a credit card program and an IC card program detecting various kinds of information of the credit card and updating the remainder information recorded in an IC card. A seller server(200) generates the credit transaction according to a buying intention requested from the user terminal(100). A credit card businessman server(400) approves the credit card. A service providing server(300) relays the credit transaction by the credit card and accumulates the accumulation money according to the constant ratio of the goods buying amount generated by the credit transaction.