Their website makes no reference to any stores outside of the USA so, at present, option 1 above can be ruled out.
With regard to numbers 2 & 3, I found this on their website: "Victoria�s Secret is a division of Limited Brands. We sell directly to the public through our catalogue and our own retail shops as retailers, not wholesalers. We do not franchise nor do we appoint agents to represent us or assign boundaries or territories for distribution."
Sorry, but I don't think that you can purchase their products here.
Chris