The terminal device 3 comprises an input device 22 for inputting data, a display device 23 for displaying data, a communication device 24 for communicating with the electronic ticket vending and refunding device 1 using a communication line such as a telephone line, a storage device 25, an IC card reader/writer (hereinafter abbreviated to IC card R/W) 26 for communicating with an IC card 30 compri