Originally Posted by
Dave Noble
I received an automated text message regarding the delay and what time it would now be leaving together with details of what time checkin would clsoe ( which was now based on new departure time )
I think that's the difference. Unless the message explicitly says that you can check in later, I would assume that check in times would not have changed.
I had it a couple of times when flying on BA from DXB. I got a phone call advising of a long delay, and saying that I shouldn't arrive too early at the airport.