If you need to update the address details associated with your domain name registration, then you should do this through your registrar. It is the registrar's responsibility to then update your address details via our automated system.
However, in certain circumstances your registrar may be unable or unwilling to make the changes you request. In these circumstances we may be able to assist.
All domain names have a Nominet account and you can amend your details using our Online Service. Once you have confirmed the registration details then you can download a presentation certificate.