We actually posted this offer on the main FFB site last week (on our Flying Blue page) as it was up on the Flying Blue site but now AF KLM has the landing pages ready as the offer didn’t officially kick in until today!
Up to 50% Bonus Flying Blue Miles when you buy miles online. Full details.
A cap of 50,000 Bonus Miles applies during this promotion. This means
you can only receive up to 50,000 Bonus Miles on purchases of up to
100,000 Award Miles during the promotional period. Our Ivory members can
buy up to 75,000 Award Miles each year. As an Elite member, you can buy
as many as you like.