People here can have a good idea.
If you have a Qantas booking reference, look it up here:
[URL unfurl="true"]https://www.qantas.com/au/en/manage-booking.html?tabId=manage-booking[/URL]
Once the booking come up, select "Flight Details" on the left hand menu.
Open up each flight listed and look for "Travel Class" following be a text descriptor then a letter on brackets. For example here is an O class booking. O is the "Fare Bucket".
[ATTACH=full]323335[/ATTACH]
Earn is based on the marketing carrier and the single letter "Fare Bucket".
For Qantas earn on American Airlines, you can look up the Earning Category the fare bucket represents here: American Airlines Earn Categories:
[ATTACH=full]323336[/ATTACH]
