DNS issue, cant create name servers, subdomain show parent domain files
i have a hosting account that I'm trying to convert to reseller and were having some DNS troubles.The main issue is that when I try to make a new account with a sub domain, it shows my main page, and I can navigate the whole site with the subdomain in the url. (this happens with any sub domain created)
For example,
If I have a page called http://www.myurl.com/contact.html
http://sub.myurl.com/contact.html will show the file, thats in the parent directory called contact.html
The other issue is that I can't create my nameservers. It says their unable to verify existence of nameserver.
I have the domain pointed towards the hosts nameservers and that' why the site is currently up. (It wasn't always a reseller)
Any ideas, should I be talking with my domain provider or hosting provider?