Nan 2 for my baby boy

I am a very angry customer my baby boy is 1 year 4 months.I always buy him NAN 3 but last weekend when I went to Alsida Supermarket in Muldersdrift near the LION PARK there was no NAN 3.I bought Nan 2 and the expiry date was for next year but when I made the milk for my son the milk looked funny I tried it again and again but the milk looked funny.I tasted the milk the milk was sour I took the bottles and took it back to the shop when I got there I was told it is not their problem I must contact the supplier. <br> <br> I am an angry mom I had given my son 1 bottle to drink and this is unacceptable as I had to but another 1,8 tin of milk costing me R280 CAN I please be contacted as im not letting this go something must be done and my money was lost due to this.