Evening
I have reward flights booked into Singapore and home from Hong Kong and this evening have booked a. flight through BA from Singapore to Hong Kong on Cathay. I have the booking confirmation with BA booking reference. Unsurprisingly I can't access this flight on the BA app which is understandable and on the main sight using the BA reference there are just limited details. I have been searching for the Cathay reference but can't find despite having a good search. Suspect a simple phone call tomorrow will sort but am interested if anyone else has spotted and I am being daft. Want to be able to locate on Cathay site so can change seats which have already been allocated and nearer the time check in.

Any pointers gratefully received.
Paul