je viens de recevoir un nouvel email du vendeur ,,apparement il a l'air sincere :
Oke do these steps as well and before i'm gonna give you
another code or refund I will contact Microsoft Benelux. i will
tell about this problem to them as well,
Two other things to check, do you have a credit card on file
with XBOX LIVE that has expired this will block renewal,
until the card has been updated. Have you ever input a
credit card into the xbox live system?
Also can you log into your account information on xbox live
and make sure that everything is filled out correctly. Like
address country things like that.