I have the same problem. I called Verizon and was told to report the number to the Unlawful Call Dept. and if the calls continue to contact the police dept and put a harassment complaint in against the phone number.
I got a call from this number and the woman said she was calling about my PSE&G gas or electric bill. She sounded very official and stated that she was required to wait while I gave her my POD number. I hung up, after nicely saying "No, thank you, I don't think so" and she CALLED ME BACK!! When I finally answered, I said "Are you kidding me????" and she said "I just want to let you know, Ma'am, that whatever company you do have is charging you from like 15 different other companies, so you just go ahead and pay those high bills" and she hung up. It's not easy to report a harrassing phone call or notify some authority of a possible fraud...but I have continued to try. I even called PSE&G research and development dept (ony because that is the number that came up on the website), and the woman who answered the phone was applauled to learn of this and said she would report it to their security dept. I tired reverse lookup and that is how I found this webpage. AMAZING!