Poor service

I went to the store ( pick n pay Fairmount) to buy egg, on the shelve a price was R62.99.On paying they rang as R114.99. I got confused we went back with till operator to verify and yes indeed price was incorrectly placed .As per CPA consumer must pay the price he/ she sees,member of Mangement got arrogant around other staff members and insisted that he will never give me the product with the price I saw . Then I was told that I must look at the barcode, really barcode for what cos price is what you pay at the tills.Then I was later told that they were moving shelves and left price there..how's that my problem?Store also failed to answer me after been transfered by service consultant..I hold a phone for over 15 minutes and I could hear the background that it was in the store.