Originally Posted by
mia77
You're friendly.
OP so you have a second PNR of 4 seats booked and paid for with points already? Doesn't the 2-1 have to be used at time of booking? Just checking the terms and conditions as they can be quite nailed down

sorry if have gone off on a tanget, amature forums user as well.
Apologies if you felt I was less than friendly. However, I got the impression that you didn't read or understand the OP's problem since your advice didn't really address it.
T&Cs for a 2-4-1 can be found
here. What the OP did is a common strategy for using a 2-4-1, namely booking the outbound flights as soon as they are released, and adding the inbound flights when they get relased at a later date.