Hi

http://www.dnsstuff.com/tools/whois.ch?ip=interunix.net --> This shows that their domain name is still active.

http://www.dnsstuff.com/tools/dnsreport.ch...n=interunix.net --> apparently they cannot find their servers although they have the DNS.

I would say that they have already wind up or something. Yes, it's a painful experience. I hope you did not pay them a big sum of money.

Best regards pal.