To view and/or modify your SuiteDash subscription (such as upgrading/downgrading your license level, changing your payment method, or cancelling your service), you will just need to navigate to Settings–>Manage Subscription

From this page, you will be able to view your current license level (and it’s resource usage and limitations), select a different license level to upgrade or downgrade to (along with details for those levels), change your payment method for your license, and/or optionally cancel your license entirely.