Originally Posted by
Mordac
even though there was a bit of a mess with the Aer Lingus reference code starting with 2 that is also not displayed anywhere in the documents I received.
If you entered the BA PNR into the Aer LIngus manage my booking on the website and/or app, you would have seen the Aer Lingus PNR quite easily.
On Avios bookings made via Aer Club, the documentation sent contains both the BA and EI PNRs.