Bad luck. There’s no way you can delete your account. And Meme Center won’t manually delete your account either.
Complain using the contact form found here: http://www.memecenter.com/contact
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.