I already did it. Just click where it says "Redeem" or something like that. After a long time (for some weird reason) the page will load with the code you put on the menu of the 3DS eshop.
Edit: for some reason the first time I clicked redeem it gave to me option to send the card to my fake address. I click on it again and it gave me the code like normal.
Nintendo and PC gamer








