In April there were no mileage seats on BA from ORD to LHR. The BA agent was confident that seats would not open up for a July flight, so we booked BA from JFK to LHR and bought 3 roundtrip tickets on AA from ORD to JFK. Booked AA so our flights would be protected if there was a problem on the first leg. A couple of days ago three first class frequent flyer tickets became available for the same dates from ORD, so I grabbed them and happily payed the $55 per ticket change fees. Now I'm stuck with three AA tickets from ORD to JFK. Is there anyway I can get a credit, without the $200 per ticket penalty, on the grounds that it was a change to a single itinerary on oneworld?