To impose restrictions on payments made through a
payment application smoothly and efficiently when a player borrows the
game machine management game medium number using the
payment application that operates on a terminal device possessed by the player.SOLUTION: A player operates an inter-
machine card processor 10 to display an application
payment screen including a QR code (R) (S1). The QR code (R) is read by a portable terminal 90 (S2), and payment request information including a payment request amount of 10,000 yen is notified to a payment
server 80 (S3). The payment
server 80 determines whether payment is possible using the received payment request amount and a payment-available amount corresponding to a user ID (S4). When the payment
server 80 determines that payment is impossible, it notifies a management device 50 of unsettled information including the payment-available amount (S5). The inter-
machine card processor 10 displays a deposit selection screen according to the payment-available amount included in the unsettled information received via the management device 50 (S6).SELECTED DRAWING: Figure 1