Language problem

Hi Halo Community,

I bought Halo 5 Collector with the statue in France. I told Microsoft to send me the physical copy of the game.
I received it but all dialogs are in english subtitled in french (with big ugly yellow characters).
The game menu is in french except community messages.
I think Microsoft sent me an english version of the game because the game’s cover is in english too.
I should get the french version of the game. I modified language parameters of my Xbox One (as Xbox support told me) but nothing changed.
They invite me to post a message here.

I don’t know what to do.

Thanks