Thank you very much for your quick answer.

I have some other questions about the Flying Blue Program and I'll use this thread, if that's ok.

For instance, when simulating a MAD-SVO-PVG in aeroflot's website, there are some fares available: Budget, Value and Promo (in Economy). According to the fare description (when we click on the fares), the rewarding percentage is, respectively, 75%, 150% and 200%. However, if we select the value fare, for instance, the fare basis is "QEXA" on both ways. I suppose that means the Q class, which is just rewarded with 50% according to the FB partner pages. Could you explain this?

On the Airfrance website, we can find this silver benefit:

"Carried over Level Miles
Get your year off to a flying start – make your Level Miles go further by carrying them over to next year.* Instead of resetting your Miles balance to zero, Flying Blue Silver members can now start the year with a positive account, as Level Miles earned above your level threshold will be saved after your Annual Level Check. This makes it easier for you to retain your current membership and achieve enough Level Miles for an upgrade!
* You must have made at least one Qualifying flight during the year."

Does this mean that, once we reach the silver status, we just need to make a qualifying flight during each year to mantain the silver status?

Thank you so much once again, and let me apologise for such a big amount of questions.