| 摘要 |
A payment management method and system for performing suitable payment management, wherein a user of a credit IC card can store a transaction history in the IC card, collate the transaction history with charged amount data possessed by a credit company, quickly confirm a payment due date, judge an illegal demand for purchase by a non-authorized user, and know charged amounts claimed for the next time. The system includes the IC car which stores the transaction history data therein, a terminal device for accessing the data within the IC card, and a serve of the credit company connected to the terminal device via network for storing credit user data demanded by a credit member store therein. The terminal device stores transaction history data at the time of a purchase into the IC card, extracts the credit user data from the server of the credit company, and collates the transaction history data read out from the IC card with the credit user data extracted from the server. The terminal device displays the collated result.
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