I've just got the email too.
Bizarrely I have now just received emails for this offer on the emails that didn't work the other day.
Just another benefit of Brexit ;)
When logging in, and then clicking back through on the Get Deal link, I see the message: "Désolé, vous n'êtes pas éligible à la promotion, mais découvrez vite nos idées cadeaux ci-dessous et profitez de nos Ventes Flash de Noël !" Which translates as: "Sorry, you are not eligible for the promotion, but quickly discover our gift ideas below and enjoy our Christmas Flash Sales!" Shame. Good deal for those who are eligible, but unfortunately not for me.