Their sales deceive people

Every shopping experience with them, they overcharge their product. What you see on the shelves is not what you pay at the till. I always have to go back for my cash back. What about customers who have challenges or pensioners. I feel like they make up for the big sales they claim to put up for people. Even my recent slip. They R4 OVERCHARGE but becausebitbso little,I won't go back. Clicks is robbing people