Forced to pay a higher price at shoprite while they have advertised a lower price.

I was mistreated at Shoprite Rosettenville mall Junction, Joburg South on 23 September 2021. The Shoprite pamphlet advertise 2x6x200mls fruit tree juice for 24,99 but I was not allowed to get it at that price as they said it was a wrong price, but me as a customer,i know my rights, that I have to pay the price that I see but I was denied that right. After a long drive to the shop, I went home empty handed, just like that😭😭😭I felt so robed and disappointed.