Just Energy Unwanted vendor

2 people came to my door at 8:40 pm on a Saturday.
Said they worked for “Just Energy” and a very determined saleperson wanted to see my Gas bill. I asked questions and was not satisfied with the answers. I told them I would be checking them out online. I do expect them to come back, looking forward to confronting them. I was shocked at how pushy he was, I feel sorry for the elderly that might not have the courage to say NO.