Expired food from Makro

I bought 12 pack of Makro fresh milk and the exp date written on the pack was 02/07/2020, only to find that the milk has expired already ,because when I got home my children drank the milk and they told me the milk is a bit sour and i told them there is no way , because the exp date is next year . Up until i made the tea thats when I proved the milk wasn’t ok , when I warmed it made it made a foam like and became like amasi and even had a funny smell. This went to an extend that children got sick had runny tummy . Honestly at this time and point I feel frustrated and disappointed, Makro. need to sort their mess out and make sure they sell proper food for people.