When you make credit card payments on cybozu.com Store, we use the identity verification service that supports 3D Secure. As a result, you may be prompted to enter a one-time password.
Additionally, payment errors may occur if you attempt to use a credit card without 3D Secure enabled on cybozu.com Store.

For information on how to enable 3D Secure or obtain a one-time password, contact your credit card company.