We are willing pay to upgrade, if the difference is not that great, but I guess we'll have to wait and see what they say at the lounge in HKG. The ticket is a TPExHKG-SYD routing, so can the lounge in HKG work out an upgrade charge for the HKG-SYD sector, given that it won't have been ticketed in HKG, and that one sector will have been travelled?