Was u on the Xbox one or 360
Xbox One 
It would be nice, if they would fix it for 360 also. I just bought the collectors edition (sealed) and also season pass - everything seems to be working that came with the collectors edition (VIP, tokens, few extra cars and liveries), but season pass just isn’t available in game.
EDIT: I did some reinstalling/downloading and got the rally expansion from the ingame marketplace and I was able to play it. Season pass bonus cars are not available to download and I haven’t yet figured out what is happening with the car packs, because at one point they appeared on the autoshow, but, when I tried to purchase them I got the pop-up message (something something exclusive content not available something something). Now they are all gone again. I’m on 360.