Nobody affiliated with this site called you, nor is your post likely to be viewed by your caller. Instead of threats, try blocking the call, or ignore it all the way around. If they get voicemail/answering machine, they're probably going to continue calling.
For a cell phone, some already have call blocking, if not, there are free apps on the web that will work for some. You can google this. If you have a smart phone, there is a free app called call control. Iphones appear to have apps also. Another one is called Mr. Number.
For text messages: forwarding any text message spam you get to the short code “7726,” which spells “spam” on most phones, to alert your network operator to the abuse. ATT won't accept 7726 But they will accept BLOCK and return a message that the web site is blocked. forward the texts to 7726 or BLOCK, depending on your phone carrier.
http://www.att.com/esupport/article.jsp?sid=KB115812
Report your callers here, not just to the DNC alone: