did you purchase a domain and get a paid hosting account here
if you have the free subdomain you can fully delete your site and your account
if you have not paid for anything here and just have the free subdomain or just a bravenet account then login to your account click the websites link and delete your free site if you have the free one
and then after you delete your site go back to your account area by clicking the accouont tab and in right corner where you see your account info click the edit info link and scroll down to where it says delete entire account and go from there
if you are paying for anything would contact bravenet just to make sure you stop payment on anything
