This was in Medford, and they left after I told them I was not going to do anything until my husband looked into it, and I was NOT going to go find the bill! They were very persistent. They also started the conversation by aggressively showing me their ID for JustEnergy, like that's supposed to make me comfortable with them. They also said that their company was THE SUPPLIER for National Grid in my area (implying they were already the only supplier, so I wasn't doing anything new and wasn't really changing companies or anything). They pointed at other homes in the neighborhood and said "Your neighbors are saving with us". To make them go away I had to fib and tell them I didn't know where my husband filed the paid bills, so I could not look up what they wanted me to. Then they offered to return when my husband was home, and I said we were quite busy. I asked for a flier or business card or something, and I got a flier implying they are a green energy retailer.