@mauvecompany In April this year, my credit card could be used. However, after the website real-name authentication, I bought tickets in July and my credit card could not be used. I don't know what this website does. It's inexplicable.
@mauvecompany The website for buying tickets is the Korean version of Interpark. I can't find the relevant page for the international version. How can foreigners buy tickets? Can you give me a link for foreigners to buy tickets?