Originally Posted by
eponymous_coward
This situation happens a lot (customer buys ticket on DL for AF/KL metal, for instance- they are buying the DL codeshare, the flight # on AF/KL is in allowable range- but the DL number is NOT), and quite often AS won't allow the credit. AS generally isn't kind to people who do codesharing tricks to save money- they generally want the airline that sold the ticket to match the metal you flew on. YMMV.
I think in the OP's case (the way I understood it) it's being marketed as an AA flight number (not a US codeshare) and flown on AA metal, just sold through the US website. This shouldn't be treated any differently by AS than an AA flight w/ AA number on AA metal sold by Expedia, Hotwire, or your local travel agent.
AA Metal + AA Flight Number (in acceptable range) + Creditable Fare Class = AS Credit... or should at least, and worth fighting if it doesn't go through automatically.