SPOILT MILK

My family used c***** milk ever since I can remember. We use a lot of milk in our home mostly for making paneer (Indian home made cheese). In the past even if the milk was one or two days after the expiry date,it was safe to use. In the past couple of months the milk I buy 50% of the time my milk is off even before a week of the expiry date. I changed the local shop where I normally buy my milk and I still have the same problem. Today (17 January 2018) I purchased 6 litres of c***** to make paneer and the milk was off, expiry date on bottle was dated 30 January 2018. Milk is not cheap I pay R29 for a 2 litre every day. The expiry date needs to be adjusted and product be improved.