KFC five ways incompetence

I was at KFC Five ways, Port Elizabeth. I asked for two dunked burger meals that is advertised as R 54.90 each that’s supposed to total R109.80. We were charged R115.80 insteased. When we enquired as to why it’s more expensive the *********** staff could not understand what we were asking and charged us an addition R44.00 and brought us food we did not even order.