Sour milk before the expiry without any apologies

I have bought 6 Litre, (3 bottles 2L milk) on Tuesday 5Des. I was in a big hurry and did not check the expiry date. I usually do that. But the expiry date was for 6Des. The expiry date is always a few days later. Needless to say, when I opened the milk Tuesday evening, it was sour. And that is not the first time. I am tired of this now. After a long hard day of work, I do not have the energy to return these bottles of milk. But I decided to return it early this morning. The lady at the counter was not very friendly. She never apologise to me and it feel like I was not telling the truth. She just pay me the exact amount I've paid for that. <br> <br> Sour milk is due to the poor cold chain that Pick n Pay has. They need to learn to keep the milk ice cold at all times.<br> <br> Who pays for my petrol and my time when I have to return these items? I'm at the end of my tether with Pick n Pay. It looks like I should take all my shopping to Woolworths