Cannot download

I have an ipad mini 2 and I bought this game yesterday and since then i have been trying to download it but it fails to do so. I have tried to pause it and unpause it and even deleting and downloadin again but none of it seems to work. It just gives an error saying that "this game cannot be downloaded". When to point of buying a game when i cant even download it.

Dopce about LEGO® The Lord of the Rings™