*****ing from customers

I bought 1kg of Lancewood chees today. The price on the fridge was R79.99 but when I went through the check out it registered R84.99. Can you imagine how much money checkers is *****ing from customers? Obviously they dont check the barcodes on their computers. I think this is gross negligence of staff. SA consumers are cash strapped as it is currently and then checkers who claims to have better prizes cheat customers this way. What a shame?!