[GlitchMr]

I have a different issue myself. Despite having opted-in to marketing e-mails I never have obtained a marketing e-mail from Nintendo since then. Nintendo's website shows that I have agreed to "receive promotional e-mails". At one point I did in fact unsubscribe, but later I resubscribed. I think that there is a bug that sometimes causes promotional e-mail setting to not be updated in newsletter database (maybe the server was down when I tried to change the setting, and Nintendo Account website quietly ignored the error).

[bombcar]

Main bulk mailing companies (iContact, Sendgrid) will make a blocklist for you of anyone who has unsubscribed - and if you're not careful about it once on you'll NEVER get off - and it prevents send to those addresses even if you later re-add them to your list.