I'm not sure if I'm missing something, but EF no longer seems to have correct data for some BA flights.

I'm looking for seats in F LHR-SYD Jan 5th. EF shows BA15 as F0, A0, but on BA.com I can book 4 seats on this flight in First.

Interestingly the seat map for that day on EF shows 4 available plus 2 blocked seats, whereas BA shows 4 available seats and 4 unavailable (if 1A and 1K were blocked not sold, I think as BA GGL they should be available to me)

It's very similar on Jan 4th with EF showing no availability in F or A, but showing 4 seats available on the seat map. BA is showing 4 seats available for that date

Does anyone know what's going on? Unless this is a temporary glitch, it would seem that EF can no longer be relied on for reliable availability information on BA