Can not add a .top domain that I own

Can not add a .top domain that I own

When I try to add the .top domain I own I get a response that the domain is not allowed and to contact support. I opened a support ticket and sent an email in 24hrs ago and have not had any reply, as a new customer moving from google workspace, this is not a great experience so far :( Hopefully my ticket can be located a response can be sent on how I can add my domain into your system.