For example, the following cases may be the causes of payment errors.
If your credit card (3D Secure compatible) has not been registered or a password has been set.
If the error tolerance limit is exceeded on the password entry screen.
In the event that each card issuing company restricts the use of the card.
As mentioned above, the cause and response method differ depending on the situation of the person.
We apologise for the inconvenience, but for details, please contact your card issuer.

https://ticket.expo2025.or.jp/en/faq/