If you no longer need your website or your subscription to Envato Sites, you can cancel by deleting the website from your dashboard. When you delete your website your subscription will be automatically canceled and your content will be remove from Envato Sites. No further payments will be deducted from your bank account unless you have an amount owing from a previous payment period.
To delete your website and remove all of your website's content from your Envato Sites account:
4. Click Yes, delete this website. Your website will be deleted immediately
If you would you like to delete your Envato Account click here for more information.