KFC off chicken

Me and my collogue had streetwize 2 pap each and both had diahrea the whole weekend so I told head office what happened so head office said I must take it up with the branch KFC Epson Downs. So I spoke to Hombulani. So he said that there is nothing wrong with there chicken how is it possible that the only thing that me and my collogue had to eat together was KFC from the same place that I bought for us.