Simba selling expired good in Pick and Pay stores

This is highly unacceptable i bought a packet of chips from Pick and pay and sent all the information and a picture of my chips that said expired from 2009 and they tell me that it is not their fault you supp**** this to them,,,,I expect feedback from this it is highly disgusting that Simba is such a big brand and you guys apparently made a typo it is disgusting service!!!!!!!!!!I expect a response for this!!!!!!!!!!!!!!