Hello everyone: I am new here and just became the proud owner of a 35 cm gold togo pal. hardware birkin last week! I want to especially thank all of the members on this forum that were so kind to me! I read a bunch of treads about bringing your bags to the store for a spa and I just wanted to know what this entails? Is it beneficial for all leathers or just for some? How long does it take? Do you need to show proof of purchase at a store or do they accept authentic bags that were purchased via third party resale? Merci Bisous!