To update your domain contact details, please follow the below steps:
2. Once you're logged in, Click on Domains, then click on My Domains from the drop down list.

3. Locate the domain name you wish to update, and click to enter the "domain overview" page.
4. From the sidebar menu on the left hand side, click on "Contact Information".

5.Update the required details for the Registrant and Technical (See tabs below the heading).

6.Once done, click Save Changes.
7. Please allow some time for the domain changes to complete.