METHOD FOR DISCOUNTING PAYMENT

摘要

PURPOSE: A payment discount method is provided to enable a client to cheaply purchase products by deducting points of the client from basic sale costs. CONSTITUTION: A product selling server(105) includes a customer confirmation unit(115) client information or client member information. An information extraction unit(125) extracts client point information interlocked with client member information or the confirmed confirmation information by interlocking with a storage medium. A complex payment information calculation unit(130) applies sale price information to basic sales price information.