Pharmalat not responding to complaint

I bought a 6 pack long life milk from Checkers and when we opened the first box it was off. A second box delivered the same result. It looked like it was sour, like normal milk where the water floats on top. After taking photos I contacted Pharmalat and received a reference no the next day (19/09/649). I was informed that someone will be calling me to replace the milk. Six weeks later and two follow up messages, and still no response from Pharmalat. Hopefully I will receive a response after this negative review.