Originally Posted by flying_geek

Sounds the like original flights could have been had for 57500 back then and taking a voluntary downgrade to PE on the TATL. Somewhat academic.

Not that long ago I had a (revenue) 261 downgrade claim which was a little convoluted (DXB-LHR-MIA in F) - LHR-MIA cancelled - rebooked onto AA flight in F next day by BA. AA flight cancelled and booked into J (downgrade) on later BA flight. BA paid delay compensation. AA gave me a $1000 voucher (without asking) - asked AA for 75% - they said BA's fault. BA said AA's fault. In the end they worked it out under some JV agreement and BA refunded the downgrade compensation to original form of payment. AA then cancelled the $1000 voucher customer service gesture.

So maybe they can work out the AA miles refund. Since OP is EXP - I would, after the flight - reach out to the executive liaison desk or whatever the C level gatekeepers are called. I would also argue that the flight as flown would have been 40K miles and ask for 22.5K back since you only bought the 22.5K extra J ticket for the better class of service...
Might make it easier for them to settle for 75% of it...