Hmm my purchases have all been in the UK or France, until this year when I made my first USA purchase. The bulk of them were made in France though, as I travel often.
My SA did mention that starting in 2018 they should be able to see everything, regardless of which country/region you purchased from.
I'm probably in the minority in that I'm not interested in B or K, though I love (and own) some of the other bags. So building a history for the goal of B or K is not what I'm trying to do. Still, it was funny to me that website purchases wouldn't count towards anything.