Ambassador, British Airways; FlyerTalk Posting Legend
Join Date: Apr 2012
Location: Leeds, UK
Programs: BA GGL/CCR, GfL, HH Diamond
Posts: 42,997
You can’t upgrade with avios any further now. I think the only chances are if you are offered a promotional cash upgrade price in manage my booking, or ask for an airport upgrade price when at the airport at check in. You won’t get F TPs for either of these though.