Clicks Sells Expired Chocolate

I bought a box of Astros for my 2 year old from the Clicks in Randburg Square only to find (halfway into the box) that the Astros have expired. I only got to know this because I tasted a few of them and noticed that they tasted differently to regular Astros. Why is Clicks selling expired chocolates, we're being exposed to so many problems just because they didn't check.