Have a one time use on one purchase of $30 at buy.shareacoke.com and also have a $20 NFLshop.com Giftcard. Want Amazon, eShop, or PayPal. $20 for Coke and $10 for NFLshop.
It should be tied to your Nintendo Network ID. Log into my.nintendo.com and check your account activity, see if the games are listed. I would call customer support if it's not and they can link them to your account so you don't lose them.