GeekyDad said: Don't remember downloading it, but it says no code necessary as I've already downloaded. Don't even see it on the eShop. Click to expand...

You won't see it on the eShop as it has no page on there due to only being available through promotions. Go to the my owned products section which is is one of things in the leftmost option when on the 3DS eShop (at least in the EU layout, I'm hoping at least that part of the US layout is the same).