Originally Posted by
wolfie_cr
Question, if I recall correctly the situation was that if I book the reward as it is now (sjo-iah in Y and iah-lhr in BF) I will get THAT and nothing else, correct? (I mean, the SJO-IAH is doomed to be in Y even if seats open up later on?)
You are redeeming for a F/BF reward with one seat confirmed in Y. You need to ask them to waitlist you for the F seat on that segment and then when it opens up you'll be moved into the good seat. You should see the segment listed twice in your reservation - once in Y and once in F with a waitlist notation. If you only see it once then the agent did not process it correctly.
This is pretty much the essence of the Plan B approach. If you do not request the waitlist then they will not move you automatically but it is possible to waitlist it and get that big seat eventually.