Slightly strange one yesterday. Had requested two upgrades from J to F on QF36 SIN-MEL. No notification of success or failure prior to the flight, and when we checked in we received our J boarding passes in the usual way. Then, at the gate, BPs were rejected and the gate agent handed us new boarding passes with no fanfare - just a mumbled "you will be sitting in first class". No points deducted from my account so far and no text notification. Points and SCs for J class already showing in my account, but with no annotation about upgrade.
The flight must have been very full. J showed completely full at T-24; F still had 8 seats open. The CSM said that there were 515 people on board the flight (am assuming that must have included crew). I am wondering whether I got an op-up (I think the first in my life!!!). A sneaky look at the manifest in the galley for F showed 2 CLs, one other P1 besides me, a few WPs and the balance various including a couple of initialisms I didn't recognise (and don't now remember exactly what they were).