i love fragrance oils like Burberry oil, but they are hard to find. where

[? &?]

do you find yours? I looked on e-bay, that seems to be the only place where i can find it, but i don't trust the buyer's authenticity. i would like to look at a department store's online shop (just so i can compare prices) but i'm having trouble finding these oils at department stores. i even went to Burberry's website and didn't see them. please help :o)