Also file a complaint with your State Attorney General's office.
List of State AG’s offices: http://800notes.com/faq/attorney-general
Use this web site to find an attorney in your state that will probably take the case on a contingency basis (no money out of your pocket up front): http://www.consumeradvocates.org/
This number calls me no less than 10 times a week. I have asked to be put on a no call list. Everytime they say ok, I will not get any more calls, then sure enough they continue.
This number 720-538-7631 is calling my place of business. This is a County Government facility and I have called the number back many times ( I have dates if needed) and selected the option to be put on a do not call list.