All members are 100% responsible for cancelling their own subscriptions. To cancel your subscription purchased via credit card/debit card, log into your account from a desktop browser and click on the Membership link under the Account Settings section.
Deleting your profile means you will no longer be able to login on this site using your username and password. If you're not sure you want to do this, on account settings page is a way to hide your profile instead.
You must login using a desktop browser to delete your profile.