Bad Service

I Emailed customer services over the weekend regarding the Parmalat 6 pack x3 milk that i bought from the store on 14th Avenue on the 28 July 2019 . All this Milk is sour. what am i suppose to do with this? Customer services has not yet gotten back to me. This suppose to be long life milk, i mean really!!! If you think that i am lying please check your cctv footage and check the transaction/payment from an FNB card -F ABED