rotten and smelly chicken

I purchased skinless farmerbrown chicken breast from the spar on north beach last week. upon me taking out the chicken to cook on Tuesday ,16 june 2015 there an awful stench from the chicken breast . Upon we looking further I realised that all chicken breasts in the tray were off and smelly!!! this is a total put off, as we as consumers spend our hard earned money on food items that are of a inferior quality , it also poses a health risk of one getting food poisoning.