Seat choices

Booked rtn flights to Oz (sadly not with VA... Qantas/BA worked out far cheaper) but confused as the not being able to view seating options on the leg home BA016 one stop SYD to LHR

Thoughts?

Chances of purchasing seat upgrades at OLC?

Is it a BA booking on the BA16 (you mentioned Qantas, just wondered if you are on a codeshare)?

Re upgrades, which class are you in? The routes to Australia are said to be usually very full in CW.

guess I'll find out at the airport