B&Q interview questions

Had to try and sell a product to some HR bods then a small group of us were sent out onto the shop floor to interact with customers. This was all set up as point scoring exercises which I found out when I had to speak to staff one to one. They promptly told me I wasn't suitable for the job and should ring for feedback in a couple of days. I was in the room for probably a minute, no interview and rushed out of the staff area. I think I would've faired better if I had friend or blood relative working there instead of over a decade of retail experience.