I'm having trouble linking my Nintendo Account to my Nintendo Network ID.

Linking a Nintendo Account to a Nintendo Network ID is not possible in the following cases:

• The Nintendo Network ID belongs to a user who is under 13 years of age.

• The country information registered to the Nintendo Network ID does not match with information registered to the Nintendo Account.

• The use of the Nintendo Network ID from PCs and other devices is restricted in the Nintendo Network ID settings.