No account removal option.
Send them an email, requesting your account removal: [email protected] – surely someone will be nice enough to delete your account manually.
By the way: Unused accounts will disappear after a while, but it’s uncertain what happens to your private data, so anonymizing (see below) might be a good idea.
Please note that AccountKiller.com is not associated with the business listed on this page. AccountKiller provides easy-to-understand instructions and guides on how to cancel charges and relationships from the list of businesses on our site, we have no affiliation with these businesses.