Your On3 membership will automatically renew at the end of your billing cycle.
Login to your On3 account and head to your account settings page or https://www.on3.com/my/settings/. Once you are on your account settings page, scroll down to the Subscription section. You will find information on your plan type, your next billing date, as well as the time period for your most recent payment.
To submit a support request CLICK HERE.