We do not have Nintendo here. The only "official seller" here is the monopoly. Just go to mojenintendo.cz and scroll to the bottom, you'll see that the emails all end with "conquest.cz" instead of "nintendo.com".
EDIT: That apparently used to be in the past. Now the site is even more terrible, when you go to "support" you'll only see links for documents that ALL 404.
EDIT2: I found the page again. The only thing listed behind "Technical support and repairs" is the following info:
Email:
[email protected]
Tel: 284 000 124
Red flag 1: It's an email that goes to one person. The first part of the email is literally the person's name.
Red Flag 2: The second part of the email is not "nintendo.com"
Red Flag 3: The telephone number is not 1-800 - paid number
Yet, this is still listed on support.nintendo.com as my country's support.