I've got an upcoming flight on QF21 in a couple of weeks (4 Dec), as part as a US Airways award ticket. The seat map is showing a 4-seat config (sold as 3). I'm imagining if there's an equipment change, this will mean less J seats and some people may be downgraded. Now, given my lack of Qantas status, being on an award ticket and a solo traveller, I am wondering what the procedure is with regard to compensation, would I need to contact US Airways or does Qantas deal with it? Also, if the option is available to defer travel - I have a connecting flight out of Narita, will I need to get into contact with US to reschedule this as well?