You are unable to make a purchase using a credit card on the Nintendo eShop and receive the error code 2813-1400.
What to Do:
Review support.nintendo.com/networkstatus for the most up-to-date maintenance and server status information, and then try to make your purchase after the posted maintenance has ended.
Situation Not Resolved:
If the error persists, and there is no notice of Nintendo eShop maintenance, wait a while and try again later.