Checkers prices for groceries at the tills

Again I have experienced that when Checkers has specials at the tills are not registering the discount prices as that provided on the shelves. It is a total pain to check the prices all the time otherwise as a consumer you are overcharged. Managers at Checkers stores must ensure that the prices at the tills agrees with the prices on the shelves. The matter becomes a laborious issue when you have to engage with the teller at the till to ensure that the discounts are included. Otherwise, what is the pint of the discounts anyway, other than just to attract customers and then ROB them at the tills. As it is groceries in general are very expensive to the poor and middle class alike. Checkers store managers, please get your act together.