Error 2813-6838 appears when a Nintendo eShop gift card cannot be processed. First verify you are entering the code correctly. If the code is the correct region for your Nintendo Account but the error persists, this may indicate an activation delay — wait 24 hours and try again. If the error continues after 24 hours, contact the retailer where the card was purchased as it may not have been properly activated at point of sale. If the retailer cannot help, contact Nintendo Support directly.
