On my way to the Sevens, listed J SYD/HKG with five greens showing, not so at check in, Y it was all the way. Return the same, the worst night flight ever, sitting in those crappy shell back torture seats sans seat cushions! I don't know how CX gets away with this? I must say, I was not charged J fare, so that part works ok but I will never accept Y again in CX, no matter how long I have to wait to get J as listed.