Account Creation Problem

I am trying to create an account. However, even if I changed the name servers at the registrar, there is still a warning “Your domain’s nameservers are not valid. Change your nameservers to ns1.byet.org, ns2.byet.org, ns3.byet.org, ns4.byet.org and ns5.byet.org, or use a temporary subdomain.”
Registrar said that it takes up to 4 hours to be active and it was almost 6 hours ago.
Would you please check my domain and let me know about how to proceed?

Actually, it can take up to 72 hours for nameservers changes to start working everywhere, if you’re unlucky, due to a process called DNS propagation. Your nameservers look fine now though, so I think you should be able to create your account now.