Originally Posted by
mjack99
Expertflyer is showing D5 on this flight and lots of 9s in other classes but BA says there is no D and the flight is very busy in all classes. POS for my DONE is UK even though originating from Brussels. I tried France POS in Expertflyer (there is no Belgium POS) and got the same result as the below. Am I doing something wrong to get completely different results to BA?

Did I miss who you are ticketed with? And that you are in fact already ticketed? Both useful bits of info if you'd like informed help.
I believe it's _very_ unlikely you can convince AA to take over an already ticketed (by someone else) xONEx.
If it's not a POS issue then it may be a marriage issue -- are the segments before and/or after this within 24 hours of this segment?