My wife and I are travelling on QF 25 on 22/07 with our infant son. We had been allocated a bassinet but now apparently due to a change in the aircraft being used we lost that allocation because my profile listed my preference as a window. After complaining to QF we were given a bassinet again. I only discovered the first change on checkmytrip.com. How can you tell what aircraft is being used. QF 25 is normally a 2 class config, however for our flight it is three class. We are flying over Y and coming back J on a points booking.