CAR PACK RIP OFF

Hi all, I have been an avid FORZA player from day one on the original xbox. I even buy all the car passes for all editions but lately since the Forza Horizon 2 Fast and Furious add-on I try to download the new car packs but it tries to charge me for them, like I said I own the car pass so it should be free. I’ve tried hard resetting the Xbox one and deleting then re downloading the car pass but nothing works.
what else can I do please??
Thank in advance.
Edd

Which ones are u referring to specifically? The car pass does not cover all car packs released for FH2.

The carpack is for the first 6 car packs only as it says in the description http://forums.forza.net/turn10_postsm183093_FH2-Cars-and-DLC-List.aspx#post_183093