If the only contact information the registrar has is the @ of the domain then that likely mean that the registrar is failing the contractual obligations that ex

If the only contact information the registrar has is the @ of the domain then that likely mean that the registrar is failing the contractual obligations that exist between the registry and registrar. While I have not read the exact contract that exist for .com registrars, I am confident enough to say that you can not do that.