I have a Super Fan Pack from Crunchyroll, but I cannot find how to cancel my Utomik subscription

Your Utomik subscription is linked to your Crunchyroll subscription and you cannot cancel your Super Fan Pack at Utomik: this needs to be done on the Crunchyroll portal as described in this article written by Crunchyroll.

As soon as your Super Fan Pack is canceled, access to all the various subscriptions will also be canceled. Your account at Utomik can be switched to a regular 'Personal Plan' or 'Family Plan' subscription by following these simple steps.

1. Log in to our website.
2. Start a new subscription with your regular Crunchyroll account.