Not sure if its illegal but someone from this company just knocked my door insisting the same thing..when we first bought our home i fell for it and gave them my bill.
Sure enough i was getting charged more after that. I called ComEd and they said i had to cancel through them because they had nothing to do with it. I call that company which wasnt ClearView im sure. And they were mad because i was canceling.
I then came online to see reviews about that company and it was nothing but bad reviews. So today whem this man came to my door i insisted i look at their reviews first and i asked for a company card. He got annoyed and said he didnt have one.???
I just closed the door on him..the only reason i opened was because son looked out the window when he heard the door.