That PDF doesn't answer any of those questions. The only thing I saw that sorta was related to the comment you were replying to was "Our customers are affluent

That PDF doesn't answer any of those questions. The only thing I saw that sorta was related to the comment you were replying to was "Our customers are affluent, educated, digitally savvy — and loyal. Over 90% of our sales come from repeat customers" other than the 90% sales figure, that's just meaningless marketing fluff, no data/figures was given to back it up. The rest was just about the logistics of selling on QVC.