Originally Posted by
Corpt
The policy does seem to suggest that you can switch. Have you tried callling BA?
Edited: LY don’t fly on 5/4 (Shabbat) and have no business seats on 6/4.
Managed to swap to LY using the chat function on BA.com. Business seats appeared yesterday for 6/7/8/9th April so rebooked on to my prefered flight time of 3.15pm departing from Heathrow. Proper business class seat for 15,250 avios + £100 is one of my best avios bookings!