It's all part of that great free market that we are all embracing. If someone doesn't deliver, keep trying the competition until you get what you want (or something like that anyway). In any case, changing ANC-SFO-SYD bookings (with confirmed upgrades) to flights a week earlier (on the day before departure) AND still getting confirmed upgrades for the new flights is a pretty good way of flying. Just try doing that on QF!