Please take a backup of all important files on your account, and then copy/paste the following in a new reply (filling in the cPanel username and placing an X in the parenthesis). Normally there is a 14-day waiting period between when accounts are marked for termination and when they actually get removed from the system, but I'll see what I can do in expediting your request so that you may make a new account sooner than that.
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.