Originally Posted by
mith
Don't trust what nwa.com says. The system doesn't overwrite the frequent flyer number that was first in the reservation but adds new ones to it (so the elite is still from the first ff programme put in. You can see the tale of frequent flyer numbers if you look at the reservation on checkmytrip or mytripandmore or so... Miles will also post to the first programme put in, even though bording pass tells you something else - unless manually removed at the gate!!!
Is that normal problem for most airlines? For example, if my ticket is upgraded using my partner's FFP account, his/her FFP will show up as the first programme put in on checkmytrip etc. However, if I would like to earn miles (for the economy fare purchased) into another airlines automatically, what can I do? Should I ask the original airline to delete his/her FFP from my booking?