So we signed up online for Nintendo services, kids playing minecraft plus array of other games. Now their accounts say to "Sign in with Nintendo Account" and there is no associated data. If we sign in it says the account is already linked and get an error. I obviously don't understand Nintendo account management so what am I doing wrong here?
To add on when we set up the accounts a while back we set the kids up with kid accounts under our parent account. After going on nintendo's website we didn't see their accounts associated but had to pay 50 cents per account to associate them. I am not really sure what to check or next steps since I don't want to mess up any saved data that still might be there.