Old Jan 4, 10, 7:55 am
FlyerTalk Evangelist
Join Date: May 1998
Location: Massachusetts, USA; AA Plat (2.90MM), DL GM and Flying Colonel (1.04MM); Bonvoy Gold
Posts: 23,122
From aa.com, the section on earning miles with airlines, within that the AA subsection:

If you are an AAdvantage Executive PlatinumŽ, AAdvantage PlatinumŽ, or AAdvantage GoldŽ member, you will earn a minimum of 500 miles on applicable routes, except for codeshare services within Hawaii and with rail service operators booked as the AA flight number, which earn a minimum of 250 miles on eligible fares.
Sorry, but I think you were treated correctly.
Efrem is offline