You have to have access to the registrar to update the nameserver information, correct? I'm designing a largescale local companies site and for some strange reason they are changing hosting companies. New management bought them out and nobody has access to the registrar yet some guy keeps telling them they do not need access, but I think they do. Please confirm. Thanks.
You will need to login to your domain control panel for this domain name where it was registered and change the name servers to the one's provided from your new web host.