Expired snack from pep home Lynndrige mall

A very bad service at pep home Lynndrige mall, I bought a snack during the week and realized after eating it that it has expired, I went to the store to show them and for them to acknowledge their mistake, they gave me attitude and told me that they can't help me without the slip they need it for their audit they didn't even bother looking at the snack and the expired date because they knew it was expired, not even a mere sorry all they did was givinge attitude and dismissed me like I'm a no body like it didn't matter that I ate an expired food from their shop they were not even concern about my health or a danger that could occur, people are dying over expired food and all you care about is your slip for audit, your really don't care about your customers healt pephome Lynndrige mall this is very frustrating and disappointing