750ml Coke light at **************** prices R 16-50!!

I want to bring under everybody's attention. I just bought a 750ml coke light at this Bonjour shop by the Total Fuel station at the John Vorster off ramp. Guess the price!! R 16.50!!!!! Where does this price come from... normally R 11.50 maybe R 13-00 at other garages!! ****************!!