Originally Posted by brunos

I am also flying on 3 June but HKG-LHR.

In the past 24h, EF has been giving strange results.
As of just now, EF lists both BA28 and BA32 as oerating.
But if you don't specify a specific airline, the flights are zeroed in all classes. If you specify BA there are plenty of seats available.

BA website also offer both flights for sale.
Hard to understand.