Complain

Good, my heart is very heavy, I went to sunshine Roodepoort to buy groceries. I went to tissues shelf I found that price written there an I asked, they said to me, the price is wrong is the copy of pricing error an I understood but I was so so angry. I took some of the items, when I got to the tills they scanned more again. I was so frustrated, even now i still need my tissue price. Please help