Rotten Biltong

Good Morning<br> <br> yesterday i bought billtong 2 packets from Pick n Pay, Campus Square. i had the first packet as i was about to finish it i not that there was a slice in the packed that had mould on it, How do i know if there were other rotten slices in the packet?and i have eaten them?i then complained on PNP website, they called me, so i went back to the store and they told me it that was new stock, and all they could say is they are sorry, i could not accept the apology, was talking to the lady by the name of Fikile. My life could have been at risk and the expiry date on the packet was October 2015, <br> <br> I personally dont feel they are truly sorry they were just to quick to offer me a refund and nothing else, i didnt take the refund , just left the store