Hi all, I just arrived in London on CO 4 and absolutely enjoyed the BF product on this route. I only upgraded with miles on the way here, but don't think I can shell out more money for another upgrade.

Has anyone had any luck obtaining any op-ups at Heathrow? I am desperate to sit up front again, but my money is running low while spending in London. Had some charm and being nice helped in the past? How are the CO reps at LHR? Any lounges in Terminal 4?