I've received nine calls from these people in the last week... the calls come as early as 9 am and as late as 6:23 pm.  They are allegedly our electrical power suppliers through our PSE&G account, and need to be renewed in order to continue to "save us money" on our kilowatts.  I've asked for hard copy to be snail mailed me explaining the source of the power they supply, and told them I have signed on to Ethical Electric.  They keep phoning me, and it's seldom convenient to answer the phone, so my next tactic will be to tell them to stop harassing me or I'll report them.