Free hosting

Mr Yousef
you said in this topic http://4down.info/news/1207-free-cpanel-web-hosting-with-php5mysql.html about an amazing hosting but there is one more thing I already have a domain and have added it to my hosting but it is always redirects me to the subdomain I registered with in beginning and I cannot remove my subdomain and make it only the domain name and when I contacted the hosting support they don't reply to me.Please tell me what I have to do.
Thanking you,I remain.