Originally Posted by
TONY123
the message suggest we need to go to (ATA Travel Centre ) which we have done and entered the info they required from the passport . All the info from the passport was given and ticked ok , but not sure this info was transferred to BA. Tried again to check in , but same results with the same message ( documents for this flight are not valid ).
Have you tried to enter the information directly into your booking via ba.com? That is the next thing that I would try.
Even if you never enter any of your passport details into your booking in advance, you should still be able to check-in at the airport and travel. You simply cannot check-in online in advance. So ultimately I would not worry about this if everything else in your booking is fine (including having ticket numbers, although you will have to go to another source to check this rather than ba.com).
You might also want to have a look at this thread in case there's anything relevant to you in there:
https://www.flyertalk.com/forum/brit...ficulties.html