Pick n Pay-Groblersdal selling expired 500 ml coke

I bought about 10 500 ml coke bottles in Pick n Pay-Groblersdal on my way to Gauteng yeasterday(10 August 2015) and only realised that they expired on 06 August 2015! Unfornately I lost my slip but I phoned your customer care line and spoke to Kelvin(ref number ***) complain about this. He said that I must take the expired cokes to any branch in my are(Ekurhuleni) but it will be on the branch manager's discretion whether to exchange or not and I feel that is not good enough.<br> <br> I respect Pick nPay and dont expect you to sell expired stuff to the public. I think they are still selling expired cokes even today because I bought them at around 13h00 yesterday. By the way I used my bank card to buy at Pick n Pay so it will be easy to trace back if I bought or not.<br>