Creamline Milk - No Customer Satisfaction Awareness and Assistance

I have purchased 6 cartons x 6 boxes of Creamline full cream milk a couple months ago.

Yesterday I noticed the boxes expanding blowing up. Upon closer inspection 5 boxes tore at the seams. There was a terrible smell as though the milk was expired. The best before dates for all the boxes is December.

I wrote to their Customer complaints email over a month ago, and they have not responded back. I tried calling their helpline but no answer.