Has anyone dealt with RJ in AMM to make changes to a xONEx? I had a 16-segment DONE4 that is now a 17-segment due to a schedule change.

I am currently booked XXX-AMM-AUH-TXL-ORD but would like to change to XXX-AMM-DOH-ORD on QR. AA RTW cannot touch it due to the 17 segments and if I change the cities to reduce to 16 segments they want to reprice since I haven't started. They suggested to fly the first couple legs and they will reissue, which will allow changes.

So, can RJ handle this in AMM or am I SOL?