<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by dbaker:
If I was in your situation and had paid for it, I would have disputed the charge with AmEx if they didn't agree.</font>
There's no way you'd be successful. You're paying for premium transportation... if you take the flight, it's hard to prove you didn't get what you paid for.
I agree he's owned compensation, but not 100% refund... I'd say half to two-thirds (depending on all the facts) of the 50,000 miles (one-way) is reasonable.