I tried searching but only dug up an ancient thread.

I am booked on a 2 class flight on 747 to Sapporo in February on an AONE ticket but obviously booked in to D for this flight and I am OW Emerald.

What is the policy for getting a seat assigned in the First cabin on these flights? On the return there are already 2 F seats showing as occupied on expert flyer.

I rang the UK line but got a clueless agent who told me I should speak to BA (it is a BA ticket). I think he thought I wanted to upgrade to F even though I said it was a 2 class flight. I just want to know if I should be bothered trying to call back and getting another agent.