MEL-JFK Fare in L Class bouthg United AU website Feb 9
Phone UA USA got x2 Mileage Upgrade awards waitlisted for MEl-LAX and SFO-SYD-MEL Upgrgraded SFO-JFK vv with x2 Regionals - confirmed
Checked seating on United.com Travel Options - offered Upgrade Yto F from MEL-LAX for US$1220 took it paid card charged
Phone United US recredited 30K miles oneway
Online checking for return flight post merger - 24 hours before SFO-SYD flight -offered upgrade online from L to F for US$5731 - declined - no upgrade to C offered
2 hours later rechecked in to check seating - upgrade to F gone - offer of US$1720 upgrade from L to C paid and chose a seat in C

Onboard plane SFO-SYD- (flew from JFK so got printed boarding passes all the way through to MEL in NYC -) guy comes up and tell me I'm sitiitng in his aisle seat - calls over Maitre d'Cabine - Maitre d'Cabine says they were trying to fing me to give me my new boarding pass - 4x instead of 6x - so got my upgrade to F without paying for it Good on United - I'd just like the miles from this SFO-SYD flight credited!