Has anyone had any experience rebooking/rescheduling AA flights booked on other airlines?
I booked a flight for next week using BA Avios. I would like to bring the departure date up by one day, but when I use the self-service "Change Trip" function on AA.com, I get an error message stating that "We didn't find a match". Ditto for my return flight that I used an AA voucher for. Am I getting this message because I didn't pay for either of the trips outright with money?