I want to delete my account

It looks like you've already solved this as it looks like your account has been deleted.

For future reference, a Path of Exile account can be deleted if you contact support@grindinggear.com from the email address associated with the account (if you do not have an email address associated with the account, such as if you are accessing through Steam, you can send us a PM here).

Please also provide us with your account name and one or two character names to expedite the process. :)