Originally Posted by
Life_Platinum
We called upon return to the U.S. and were told that Citibank was trying to protect us from those inappropriately using our card. What a difference between the fine services offered by American Express and AA's Citibank card.
This isn't a problem if you just tell them you'll be traveling.
Chase and Capital One and probably others have the same policy. In fact I've heard of Chase denying all charges. FYI, you could have called Citi from Japan since they will accept a collect call. This should be printed on the back of your card.