I foolishly agreed to sign up for Just Energy through a salesman who showed up at my door after dark. He said I had 3 days to cancel without penalty, of which I immediately knew I wanted to do after signing up. My contract had a tear off portion on the back for canceling, it said the only way to cancel was to sign and mail in that form within three days. So I mailed it the next morning. Today is the third day, and I was getting nervous about it, so I called the company and sure enough, they hadn't received my cancellation. The woman was polite and agreed to cancel my account, saying it was going into effect now. Now, I'll be crossing my fingers and hoping it actually is canceled. MAKE SURE YOU CALL TO CANCEL, DON'T MAIL ANYTHING.