Upon ordering your account information is emailed to you at the email address you provided during sign up. The subject of the email is "New HostMantis Account Information".
If you have not received your new account information email, please check your junk/spam folder to make sure it did not go there by mistake.
You can also view all emails we send to you from the client area (https://my.hostmantis.com/clientarea.php) in your account menu "Hello, <Your Name>!" and then click "Email History".