Do you take credit cards?
The JR Hokkaido Ticket Counter (Midori-no-Madoguchi) and Twinkle Plaza accept JCB, VISA, MASTER CARD, American Express, DINERS, View Card and other brand cards.
From what age do children pay?
Children under one are all free when accompanied by an adult (12 and older). Two children between 1- 5 are free with each adult. Children 6-11 pay children's fares (half of adult fare, except for the sleeper and green car fee which is the same as adult fare). Children 12 and older must pay adult fares.
I would like to change my ticket.
Please see here.