I did. Found the word "Rayban" was crudely etched with a hand engraver on one of the legs! Sent it back, got a refund. There's info on the web on how to make sure you have the the genuine article. If Amazon themselves are selling them, it should be OK. If it's another seller who is selling through Amazon, I'd watch out.
They`re good but not as good as they used to be. I think the lenses were made by someone else or somewhere else years ago (or maybe the company changed hands - can`t remember) My driving glasses in the car are Rayban and I`ve always had Raybans (I get them in the US - wouldn`t pay UK prices)