Delete a Free Hosting Account
From Free Hosting Wiki
If you would like to delete your Free Hosting account, start by creating a new support request here through your account management panel.
Next, set the support thread title to:
Account Deletion Request - Please delete my free hosting account.
Finally copy the following in the thread body and fill it out.
cPanel username: ( ) Inserting an X inside the parentheses signifies that I have made all necessary backups of my free hosting account and will not hold x10Hosting responsible for any data I am unable to recover after my free hosting account is deleted. The X also serves as my digital signature verifying that I have proper authorization to request account deletion of the account specified.
A community support representative will then tend to your request as soon as possible.