I recently bought a 3ds for my little brother, and gave him his spare sd card he was letting me use while I figured everything out. When I turned on my system and checked to redownload my games, I couldn't find my 20 ambassador games anywhere, and I somehow ended up with my sister's copy of new super mario bros. 2 she had before she sold me her system. They aren't on my brother's system, and I've already tried switching sd cards back to see if that would work, and it didn't. My ambassador games aren't linked to my NNID anymore. Any ideas as to what this may be? Thanks in advance for any responses!
P.S. Is nintendo available to call on new year's?