First Flight as a QF WP yesterday on 6:05pm MEL-BNE flight. I had noted that the 5:05pm (734) had been cancelled (late, around 3pm) and availability was showing 0's in all fare buckets.

My flight was originally a 734 as well but this was changed to a 763.

I expectantly/hopefully/hesitantly inserted my SG card (not WP one yet) into the Quick Check and it promptly advised my assigned seat as 2J.

^ ^