Originally Posted by
findark
QF blocks crazy numbers of seats for their own elites (all of rows 1-2 for domestic Business if I recall); could it also be possible that calling QF failed because no seats are available for assignment? Perhaps unlikely for a sector like HBA-SYD.
Thanks for leading me to the explanation - looking at EF, there are two seats occupied, and all the remaining 10 seats are blocked. EF shows J6, so there is space at the moment. It would have been so much simpler if NZ or QF could have offered the explanation!