Booking on one PNR. DUB-LHR-MIA-CUN. Miami to Cancun was a BA codeshare flight number but was cancelled by AA 2 months out.
Rebooked onto the next available flight on a non codeshare flight number a day later. Have asked for and been refused Duty of Care by BA for the night spent in Miami.
Reply has told me to contact AA to recover the cost of hotel.
Do I chase AA or ask if BA will change their position and if not go to CEDR? Thanks in advance