HIKO Ebergy SCAM! Monsey New York

A person knocked at my door one evening claiming to represent HIKO Energy and that he coul substantially reduce my monthly electric bill.  I invited him in to see what he had to say and he stated that after 12 months, I would receive a full refund of my largest bill for the year.  I signed up.  When my first bill arrived, it was nearly three times what I had been paying all along.  I contacted the company to cancel my subscription immediately.  I got a response from customer service saying they would process my cancellation and requested my account number and account address confirmation.  I submitted those items today.