Originally Posted by
BrewerSEA
You can simply change the frequent flyer number associated with the reservation using Manage My Booking while not logged into your BAEC account.
that's not really true.
I had similar dilemma laterly. Gold with Marco Polo but only Blue with BA, when I booked flightly BA.com the default FF no. is BA blue which gets me nothing. I couldnt change it from BA.com regardless of the channel I logged in, and had to call them up to change it to MPC no.
At the moment my booking is removed from my BAEC account.
I m also in the situation where I want to have tier points and mileage added to BA, so I guess will have to try change it back to BA at checking counter after checking in. Then call them up to change the FF no. to CX again, then change it back to BA again.
so it is quite a hussle.
If anyone knows easier way please do let me know