Join Date: Dec 2006
Location: Pacific Northwest
Programs: UA Gold 1MM, AS Plat, AA EP, Bonvoy Plat, Hilton Dia, Hyatt Glob, IHG Plat, ...
Posts: 21,537
If Amex somehow just sends the credit back to AA, the OP is still out the actual refund for the canceled flight. I don’t think you could tell Amex to just send back 99% of the refund.
Get one of the bloggers to embarrass AA with this mess. Someone at AA will read it.