I had the same problem with you, Canuck.
My credit card info was reset and none of my card was accepted today.
I live in Japan, too.
I tried to buy using paypal then.
But I noticed Japan was not included in the pulldown list at Country section.
I feel rejected. *sob*
By the way, I couldn't find some books by a major author and it seemed to me Harlequin, HarperCollins, Signet/Berkley and Random House books are suddenly geo-restricted at their site, according to their error message.
But Harlequin would never geo-restrict their books, right?
Any international customers have this problem?