Shoprite - Expired taits cheese snacks

I bought 2 Taits cheese snacks at Lenasia shoprite today the 29th of July 2024. I only saw now at home that 1 pack of strip expired on 22/07/2024.
Why are you mixing old stock & new stock? I'm not happy about what the shop is doing. We work so hard for this money, now we throw the snacks away because they are stale. Stop doing what you're doing by mixing old & current you will kill people one day because who wants to buy expired food. Very disappointed Shoprite Lenasia