You will need to be logged into your client area
Once logged in you need to select from the menu >> Domains >> My Domains
You will now see a list of your domains, select the one you want by clicking the spanner icon at the end of the domains line.
On the next page you will see a manage menu on the left hand side, click “Nameservers”
You will now see your current name servers and be able to update them.
To save your changes click “Change Nameservers”*
Your changes are immediately updated at the relevant domain registry.
Please allow 24 hours for changes to propagate fully.
*If you need to know the nameservers to use to point your domain to us please see this article HERE
Any questions in regard to this please open a support ticket and we will happily assist