Hi All,
Seeking your advice on this. I booked a trip from the US to LHR then onto EDI. All of this is under one reservation from UA. My trip from LHR-EDI is via Virgin's Little Red. Under my bookings on UA's site it gives me additional booking ref's via "Virgin Atlantic Airways Confirmation Number". It also says this flight is Operated by AER LINGUS FOR VIRGIN ATLANTIC.

So I put VS' booking code in both their site and EI's site as well and neither take.

Has anyone had any luck with this?
Thanks