My Email Account has disappeared.

Email & Webmail
This is virtually impossible on our email servers unless it has been deliberately deleted. 
The following applies to our shared email servers only.
We do automatically remove POP/IMAP email accounts that haven't authenticated in any way - POP, IMAP, STMP, or via Web Mail - for over 12 months, unless that email account is being used to forward emails to another account. If an account is being used just to forward emails to another account we may ask you to change the email account to a "forwarding only" email account.