conundrum? or stupid technological brain glitch

Have you ever lost your credit card and couldn't remember your online code to your account to that card. And when you looked for any type of paperwork from which to claim the account number to enter into the computer to retrieve a new passcode, you realize you have no paperwork with any numbers on it, because you are now only doing online business with that credit card company? It's a real problem....I might go as far as calling it a conundrum. And I like to reserve that word for real puzzles of the mind.