Originally Posted by
AussieDreaming
If they are internal flights, then you cannot pre-select seats
Ring QF and make sure your Gold card number is attached to the booking and let them know your seating preference.
If they are in J or F (not sure about Y) and are longhaul you can ring and get them to pre-select seats for you.
For domestic flights the QF systems do a sweep 24 hours or so before a flight and assign seats based on the QF or OW status.