Bug with reseller domain

One of our reseller accounts changed their main reseller domain a while back (not sure if this was the cause of the problem or not). Anyway, recently, they noticed a bug with their account. When you go to http://www.usftechgaming.com/ it goes to their correct site.. but go to http://usftechgaming.com/ (no www) and it actually goes to our website. We've tried deleting the dns entries for the domain etc and still no help. Any ideas how to fix it?

 

no suggestions?

 

uhuh! it had the serveralias still set to their old domain which they changed, so i changed it to what it should be, restarted apache and she's all good now thanks, didn't think of that.