Help from someone that knows French for amazon.fr?

[filmmusic]

Hello.
I'm trying to purchase 3 Blurays from amazon.fr.
E.T. steelbook, indiana Jones complete, and Adventures of Tintin 3d.
when i'm at checkout it says this:

Récapitulatif de commande
Articles : EUR 89,44
Livraison : EUR 14,00
Montant total : EUR 103,44

Le total de la commande inclut la TVA.
Voir les détails.

Promotions appliquées :
Bon de réduction

Now, that last part, translates, promotion apply -coupon, and I understand that my purchase is eligible for a coupon.
But i can't find any coupon that i can use.
I went to the promotions page concerning the Blurays, and it has indeed some coupons and discounts, but for specific BLurays.
The ones i want to buy, aren't included there.
So, what is this coupon, that it says in the last page before payment?
Can anyone help please?