This article is for cPanel Accounts. Determine where your account is with this guide.
You can update the primary domain for your cPanel by logging in to your WestHost CP Account at http://cp.westhost.com and navigating to Billing > Services > select your service to highlight it > Change Primary Domain.
The domain name cannot be one that already exists as an add-on domain on your account. You will need to remove it first before making the change.
Please allow time for the WestHost systems to propagate with this change. That process usually takes between 2-6 hours.