From the My Details web page (you arrived here by clicking the blue Update Your Details hyperlink on the Zen Hosting dashboard), click the Contacts/Sub-Accounts tab.
Here, you enter the contact information of the new contact within your organisation.
You can tick a checkbox if you’d like the contact to have access to the Zen Hosting client area. If you allow them to have access to the client area, you’ll also be able to set the account’s permissions, such as if the contact can view emails, view domains or even modify the master account’s profile.
When you’ve finished, click Save Changes.
Please note: You can also delete a contact from this page.
Now, click the My Details tab and next to the Default Billing Contact field, you can choose who is the best contact at your organisation for any billing-related issues.