1. Log into your D9 Client Area and click on Domains > My Domains

2. Click on the drop down arrow next to the domain name you would like to modify and click on "Edit Contact Information"

3. You can then modify the contact/Whois details for the domain on the following page

It is vitally important that you keep these details up-to-date with current, valid contact information. Any incorrect or out of date contact information may lead to the suspension of your domain by the registry.