Inmotionhosting.com is hosting a site with clear copyright and trademark infringement. How do I get inmotionhosting to take down this site?

www.bookfairassociation.com is hosted by inmotionhosting.com.  I've sent coplaints to both inmotionhosting and namecheap.com where the url was registered.  The site was taken down for a few days but it is now back up with the same groups.  This group has taken code, images and content directly from our website, www.combinedbook.com and are using it for their own purposes to scam unsuspecting self published authors into paying exorbitant fees to them.  How do get either inmotionhosting or namecheap to take this site down?