Dude, stay on top of this. Force your webhoster to abide by the DMCA!!
http://www.copyright.gov/legislation/dmca.pdf
The statute also establishes procedures for proper notification, and rules as to its effect. (Section 512(c)(3)). Under the notice and takedown procedure, a copyright owner submits a notification under penalty of perjury, including a list of specified elements, to the service provider’s designated agent. Failure to comply substantially with the statutory requirements means that the notification will not be considered in determining the requisite level of knowledge by the service provider. If, upon receiving a proper notification, the service provider promptly removes or blocks access to the material identified in the notification, the provider is exempt from monetary liability. In addition, the provider is protected from any liability to any person for claims based on its having taken down the material. (Section 512(g)(1)).
In order to protect against the possibility of erroneous or fraudulent notifications, certain safeguards are built into section 512. Subsection (g)(1) gives the subscriber the opportunity to respond to the notice and takedown by filing a counter notification. In order to qualify for the protection against liability for taking down material, the service provider must promptly notify the subscriber that it has removed or disabled access to the material. If the subscriber serves a counter notification complying with statutory requirements, including a statement under penalty of perjury that the material was removed or disabled through mistake or misidentification, then unless the copyright owner files an action seeking a court order against the subscriber, the service provider must put the material back up within 10-14 business days after receiving the counter notification.
What this means is, the WTS should have sent a letter to your webhost stating which material infringed upon their copyright. You have every right to be given a copy of this letter. If the WTS simply "called" and threatened them, that is wrong. This is exactly what happened to my old dirtclod.com site. They must serve your webhost with a LETTER, not a phone call.
PRESSURE YOUR WEBHOST FOR A LETTER FROM THE WTS! The more letters we can accumulate the better. Besides, how are you supposed to know which material infringed if there is no letter?
It should look like this:
