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Nooooobody knows... ;) or at least I don't know - some other brands come with a similar card too. For a while you could buy them in bulk on iOffer, because replica sellers thought that was the critical thing to put in their auctions.
 
I have no idea. Since they're not actually an identifier of any kind, I've always thought they were a little silly. I mean, it's not like the numbers are circled or checked in some kind of code!

When I next to go BalNY, I will ask. Maybe we'll learn some deep, dark Balenciaga secret!
 
I have no idea. Since they're not actually an identifier of any kind, I've always thought they were a little silly. I mean, it's not like the numbers are circled or checked in some kind of code!

When I next to go BalNY, I will ask. Maybe we'll learn some deep, dark Balenciaga secret!

Cool - thanks highgloss

I so envy you for living in the same city as BalNY, you're so lucky! You can just take a Saturday afternoon stroll to the store whenever you feel like it.