Folks, I get these calls and HATE them. After my Panasonic wireless phone call blocker filled up, I found something you may be interested in. NOTE: This is not my product, and I only speak of it because it works so well. Look up "Pro Blocker Pro", model CT-CID803. Once you figure out how to use it (the Chinese-English instructions are funny, but not helpful). You see them everywhere for about $39, but I found mine here: http://www.tomtop.com/search/call-blocker.html for about $18 . . . and if you are a "hellovashopper" like me, you can probably find it for less. Look into it. This gizmo has earned it's place in my home.
The lady said it was an energy company. I was on a preapproved list to receive a tax credit for energy savings. I told her to remove my number from the list. She informed me that she could not remove my number because I was on a preapproved list and to not be surprised if I heard from them again. I then hung up.