I was paying my AMEX bill with their iPhone app and saw a "Your Card
Benefits & Specials" feature. After clicking it I found this $15 statement
credit after spending $75 at Whole Foods. I don't typically shop at WF but
they have a good beer selection so I'll stock up on some trappist.
I recently updated my AMEX app so you may have to do the same if you don't
have a "...Benefits..." option. I couldn't find the deal when logging into
their full site or with a quick search. YMMV since this may be a targeted
offer. GL.