Whoa - glad I read your reply. I'm in the same boat - been trying to push an order thru this whole time only to click that link and see it pending with nothing on my bank's transaction history or confirmation email.
Oh you didn't get a pending even on your card? That is weird, since in my case I got 2 pings on my card :/ Took me forever to navigate back to that order page... Even Nintendo.com buries their own store link :/
My theory is for others having credit card issues, it could be because it already processed once and aren't prompt to try again for 'multiples'.