Exactly! I overheard one conversation between a 1K and the SD before the flight and she "cited" the rule chapter and verse to him that you are only allowed a one cabin upgrade and although it was an aircraft sub and although you were confirmed in NF, you will be making that trip to NC. (When I say overheard, you couldn't help hear, if you know what I mean.) If you noticed, in my original post I said 13 pax were in F. We all know that it holds 14, so there was (behind me) an empty seat in F. That's a shame. Even the purser said that they should have filled it up with a 1K. BTW, he looked at the manifest and counted only 4 other 1K's besides me on the flight. It couldn't have hurt them to fill it up with another pax, since the flight was 1:45 late due to the substitution.