So I had read an article at some point about someone double-dipping with Sunglasses and Amex Offers. I made a feeble attempt at buying some Ray-Bans at Sunglass Hut, but only got the Hut credit, not the Ray-Ban credit. I was convinced it would work since Sunglass Hut shows up in Ray-ban.com store locator (and Amex Offer says must be used online or in-store). Did I miss a step? Was I supposed to buy a Ray-ban gift card first or something?