rotten food made family sick

I bought a packed meal at pick n pay sable square. My children served themselves and ate and in the process discovered that some of the items in the meal were off. Having consumed some of this food resulted in food poisoning. This not being the first time that I notice that the food prepared at this branch of pick n pay is not fresh. Serving old food to customers is dangerous and I do not believe that this practice is lawful or in line with health and safety regulations in our country.