Originally Posted by
flarmip
Once you have downloaded your boarding pass, you can't change your seat allocation - that can only be done by staff at the airport, if there's some reason they need to move you around.
That is interesting. Is that strictly a BA thing, as I have never heard of that before? E.g. I usually fly Delta and can change my seat right up until boarding starts, regardless of if any have been printed, and then the printer will spit the new seat pass out when they scan the old one.