My main concern is that the aircraft change occurred 24 hours before the flight, not at the very last minute. It would be nice if they proactively notified customers about the change, but I am not so demanding. Instead I asked in the lounge about the lie-flat, and then I checked online if they were still selling the lie-flat right before the flight. Yes, and yes.

In my humble opinion, changing it at the last minute is not the same as changing it 24 hours before and provide incorrect information from T-24 until T.