If any of you are based in France, you can use the promo code "Offre12019" for your next booking of:
- a AF or KL coded flight with basefare of 150€ or more to get a 50€ discount.
- Travel departing from France flying worldwide in all travel class
- It is available for booking until September 20th with flights until January 20th
- Discount is made "per booking" which means that you can book for several pax on a flight and if the sum of their basefare is more than 150€ (3x50 for instance) you get 50€ discount. Otherwise, you can also make several booking for each pax to get 50€ per pax depending on the flight you intend to book

Found this interesting and maybe easier to benefit that some other discount where the 150€ is per pax.
It is supposed to be limited to one use per person but I have not made the test