Hi.
I read that as a Gold member, I can call BAEC to link a second booking to mine to make sure that both travelers can have the same benefits.

But here is my situation:
My partner and I are flying to the same city but we are on 2 different PNRs since our outbound flights from LHR are on different days. However we are flying back to LHR together on the same flight. I would like to link only the return flight (mainly to be able to choose seats next to each other).
Is this feasible at all? And if yes, when should I call BAEC? Right now or once the outbound flight has happened?
Thank you