You can cancel automatic renewal through Subscription Management in your nova-ebook account.
Cancellation timing
Cancel at least 24 hours before the end of your free trial or current weekly billing period to avoid the next charge.
Access after cancellation
Canceling stops future renewal. Your paid membership access remains available until the end of the current paid billing period.
Important
Deleting a browser shortcut, signing out, or no longer using nova-ebook does not cancel your subscription. A support request is not confirmation of cancellation. Check Subscription Management for the current status of your subscription.
If you cannot access Subscription Management, contact support@nova-ebook.com using the email address associated with your account.