Because of the inconvenience of going to a physical shop to buy your tickets, you may now purchase and validate your tickets online instead. https://prenball.com/%EB%A1%9C%EB%98%90%EB%B3%B5%EA%B6%8C%EC%A1%B0%ED%95%A9%EC%83%9D%EC%84%B1%EC%9D%98-%EB%A7%A4%EB%A0%A5-%EC%84%B1%EA%B3%B5%EC%A0%81%EC%9D%B8-%EB%A1%9C%EB%98%90-%EC%A0%84%EB%9E%B5%EC%9D%84-%EC%9C%84/