Clicks pricing always incorrect

Please fix your pricing. Literally everytime I buy an item, the price on the floor is different from that at the till. Today, I bought an item with a floor price of R10,99 and was shocked to pay R18,99. This happens everytime I buy from any clicks. I have since learned to verify prices of each item before I pay because it looks like clicks is deliberately robbing customers. I am appealing to all customers to be vigilant when you shop at clicks. I have reported this more than 10 times this year, buy well I am not expecting the company to respond or change their behaviour, this complaint is to purely warn fellow customers.