Thanks for the heads up. I certainly didn't know what the rules were. I personally don't think you were trying it on at all. It seems they let you into the F lounge and didn't tell you that you couldn't use the dining. You say you didn't know this, so it was an honest mistake. You even said in your original post that it was being posted on here not as a complaint, but just a heads up. I bet it was quite embarassing for you. Anyway, it's good to know for future reference and thanks for sharing.