But we have just spoken to one of those who was actually doing the selling at the time.
He was too ashamed to show face, and left the job after about three months because he found it too uncomfortable as he had to "take advantage of a human being."
He told us how the tactics worked, with salesmen working to a strict script:
And he explained in pretty grim detail how staff were told to use gestures to make it more likely that they would be let in to people’s homes.
He felt the tactics were objectionable: "You were definitely forced to use them…. For people who were elderly or infirm they really couldn’t say no…If felt like I was taking advantage of the customer, I felt like I was taking advantage of a human being."
This former staff member claims there was pressure from the company’s national sales team to deliver sales aggressively.
In a statement, SSE says it "does not regard behaviour of the kind alleged as acceptable and is committed to the highest standards possible in sales, backed up by our industry-leading Sales Guarantee."