Originally Posted by
MADPhil
I may be tempting fate but I have flown quite a few of these "instant upgrade" fares in the last few years and they have always posted correctly for the fare class shown as purchased, either business of first. AA seem to be having a hard time with the post January 11 conversions and it possible that this has messed with current credits. I don't know whether you can get AA to look at what they reported to BA but that might be a productive approach.
I did... AA answer was:
The information that was provided by BA is correct. You purchased a fare that allows for complimentary upgrade to the higher cabin. You'll receive credit for fare purchased not cabin. Once your able to contact AAdvantage Customer Service they can go over that with you. They can be reached at 1-800-882-8880.
and
Mileage is based on the fare you purchase, not the cabin you actually sit in. You purchased a Main Cabin fare which allowed for a complimentary upgrade if available so it was booked in A but the fare basis was a Main Cabin fare. Please call AAdvantage Customer Service if you have additional questions. 800-882-8880