not sure if this is the right place for this so if it is please tell me

I have just bought Forza horizon 3 I used the code I received from GAME UK (£80) it was accepted all fine and dandy

I go to the store and it is telling me I own this product but doesn't let me download it....

I go onto the Xbox app and it tells me that is inst available.

I have done the Windows 10 Anniversary update and still nothing.

**edit**

Under "you own this product" is says manage if I click onto that it will take me to my games library which is missing Forza?

Thanks,

alex