I'm flying tomorrow with BA at 11:20am, and I've been trying to check in since the same time today, and until now I haven't been able to do so.
The following message appears: "Sorry, we are unable to offer you Online Check-in for this flight at present.
To check in and receive your boarding pass, please try again later or proceed to the airport."
I'm a bit worried because I live far from the airport (about 3 hours). I don't want to get there and be told I don't have a seat!
Their client support it's useless today, because they only work weekdays.
What should I do?