False advertising

I went to Pick n Pay Hyper Centurion Lifestyle. The Pick n Pay brand milk was R69.99 as per a phamplet on Tiendo. When I paid at the till it was R72.99 when I enquired and showed them the phamplet they said I must check online which I did and it didn't show that price. The supervisor said she didn't know but that is not the price and it's fine to complain online