The following issue had been occurring:

・Content sold at the Shop was priced incorrectly for players paying in Euros, Norwegian krone, and Colombian peso.

This issue has been fixed, and the Shop in the Steam version has been set to the correct prices.
Along with this, the Shop maintenance has ended, and players are now able to use the Shop.

According to our investigation, no purchases were made at the incorrect prices.

We sincerely apologize for the trouble and confusion, and appreciate your patience.

Thank you for playing "Yu-Gi-Oh! Duel Links."