You should be able to log in to your control panel by clicking HERE or by clicking "Hosting Login" in the top right menu on the site.
If your control panel looks like this you should be able to log in to your control panel here. Enter your email address, password and the primary domain for your account. If login fails you may be using the wrong credentials. Click on the "Forgot your password" link to reset your password.
If your control panel looks like this your account has been migrated Log in here Enter the email address associated with your account, your password and your domain name (without www).
If you are still having difficulty logging in to your account please Contact us