Happened to me before, best thing is to create an AF account and earn only 25% mileage with them. At the time Delta had not updated the MQM details on the website and after complaining I was credited with the MQM but not the Miles.


MQM
-------
500-mile minimum Total MQM Earned
First or Business J, P, F, C, D, Z, I 500 x 1.5 750
Coach/Economy Y, K, S, B 500 x 1.5 750
Coach/Economy (discounted) H, T, M, R, V, E, Q, U, W 500 x 1 500
Note: All other classes of service do not accrue mileage.

MILES
--------
Economy Class: 500 miles minimum or actual miles flown, whichever is greater
Business Class: 150% of mileage
First Class: 150% of mileage
Mileage may be earned on Air France-coded flights operated by Air France or any SkyTeam partner.
Mileage credit is not applicable for fares booked in A, L, N, O, G, or X class, or for Air France travel via boat/ferry service