expired product - Consumer Complaint for Puregold - Head Office

i went to puregold hermosa juan luna branch in gagalangin tondo manila earlier at 5:56pm. i purchase essential products including selecta lowfat milk.And 11:10pm i am about to open the sealed my husband noticed that the milk is already expired.(i have the receipt) expiry date 4.10.2021.this branch neglegence of securing the item expiry date. and the cashier was rude.