Anyone here use DOMAINSITE as a registrar?
 

I just bought a domain from someone, and it was registered at domainsite, so i made an account there and took the free push. Whenever I try to set the nameservers, it tells me that those are invalid nameservers not registered with the registry or some shit, even though its nameservers I'm using on 30+ other domains.

Any suggestions while I wait on their support to contact me back?