False pricing

I just tried to purchase a bush baby 2 burner gas braaier. The price big and clear was 769 and when asked to look at the display was pointed and I agreed to the sell. Wikus took it to the cashier where I had to wait only one cashier was available and was told no the price is 1300. Which also was strange to Wikus. On closer inspection i was told sorry the prices were swopped. Is this not the floor personnel's responsibility to check rather than dose of in the couches. I am extremely disappinted in their unproffesional behaviour and will never set foot there again. And will advise my friends an family to do the same