Thank you so much dear I found it !! And do u know if I can only buy 1 unit each time in whole europe ? Or I can buy 1 in Belgium n 1 in Paris, if I'm lucky to meet with my dream bag))
I have no idea, sorry. There is a bag limit, I hear (I've never tried to purchase more than 1), but not sure if the countries share the same system. Don't think they do.
I'd go down the road of having to deal with this (good) problem when you get there.

No need to think about all of this now until you've actually made the first purchase, otherwise, you'll be overthinking and over-planning things. I assume you'll head to both both stores anyway, so just try each time!