Reserving bulkhead seat (Bassinet) 48 hours out I'm flying to USA in W on Saturday. EF tells me that seat 20A (on 781) is now free - bulkhead seat at the front of W.

BA app / website will not let me book it due to not having an infant on my booking. I used to be able to use RJ to enable this,...
https://www.flyertalk.com/foru....m/british-airways-br