I received this promo as well (I am Gold). However:

5,000 extra Award Miles following your next 6 flights*
3,000 extra Award Miles after your following 8 flights*
3,000 extra Award Miles after your 9 flights following that*

So..up to 11K miles for me, but the number of segments is different too. I'll need to fly at least 6 segments in order to get *any* bonus miles. Did everybody else get the same or different numbers?

Quite by chance I have 3 KLM roundtrips scheduled between feb and may, so that would equal 6 segments, aka 5K miles. I also have at least one CSA coded flight on KLM metal..would that qualify? "the AIR FRANCE and KLM network" is quite vague, and can both mean AF/KL coded flights or flying on AF/KL metal only.

Actually, after looking at the email more closely...it seems that actually I WOULD have to fly 8+9 = 17 segments in order to get all miles! Which is different from the email posted/quoted above by bodory. Keyword is in the "Following that".