Best place to get Ray-Ban Sunglasses in London?

I'm currently in London at the moment and I'm wondering, besides Sunglass Hut, which other stores in London that sells legit Rayban Synglasses and also offer VAT refund?

Check Amazon. They sell them direct, and have really good prices compared to high street shops. Just make sure you know the size you need by trying them on in person somewhere first.

Selfridges!

Debenhams, House of Frasier.
Generally better department stores will carry them. Generally anywhere that carrys higher end Luxottica products (Chanel, Versace, Bvlgari, etc) will more than likely have Ray Bans with them (theyre all made in the same factory....)