So I was fiddling around with my Nintendo Account when I switched the account's country from Japan to UK. I then launched Miitomo only to be greeted by an error 801-1000 on Miitomo. I thought that this would be resolved if I just changed the country settings on my Nintendo Account back to Japan, but nope. Still getting the error. Any help on how I can fix this or who I can contact (Nintendo UK or Japan) to do so?