Subscription Cancelled but Receiving Emails About Payment

I had cancelled my subscription months ago but I have been receiving these emails saying their attempt to charge my card was unsuccessful. The mail goes onto say to update payment information within three days. The email comes from mail.ring.com domain and the links are directed to links.mail.ring.com. Not sure whether this is a scam or that Ring's system has a bug. And not sure how to handle it. Thanks for any tip. regards