Whiskers Cat food Off but not according to Rude Manager Pick n Pay Morningside Glen

We took a box of Whiskers back to Pick n Pay because our CAT that loves whiskers wouldn't touch it with a 10 barge pole. We returned it to Pick n Pay and the Indian Manager Lady refused to believe us that the whiskers was off. We asked her to open a packet and after an hour and a half of arguing with us, she finally returned our money. Why would we lie about it. We were even happy to get another box for the moneys worth but from another brand which she also refused. She basically wanted to send us packing with the Off Whiskers. We returned the entire box but she refused to believe us or our Cat for that matter. We will never buy Whiskers from that shop ever again.