Board Thread:Questions and Answers/@comment-6974847-20160403175935/@comment-4731324-20160404173008

Don't know if this is the issue you're having, but it could have something to do with Verified by Visa. Verified by Visa is a function for Visa cards that typically deals with international transactions. This function is meant to ensure that the actual owner of the card is making the international purchase. It's possible that Verified was activated for your cards. If that's the case, you'll have to setup an account (more like a checkpoint when you make purchases) for your card(s) by contacting Visa or going online.

Just a side note: COG limits the amount a foreign CC is able to purchase. The limit should be any transaction over 5000 yen. But it's possible they changed it to make it smaller. This could also be the problem.