Originally Posted by kjnangre

The website where you bought the ticket doesn't matter. What matters is the first 2 letters in your flight number. That is called the marketing carrier. The rules for that airline generally apply.

There is an exception: if the marketing carrier is airline B and the operating is airline C and if B and C are not the same, and neither B nor C is Delta, then often you get nothing. ie Air France flight number operated by Jet Airways = 0 MQM.