Sour UHT milk

I purchased PnP long life milk on your special for R49.99. I took 3 x6l boxes. I am have to throw half of it away, because it is now sour prior to the expiry date. On closer inspection it seems as if the Tetrapack used is of inferior quality and the boxes tear open on the sides or on the top at the opening of the box.<br> <br> I am now sitting with a stained, smelly carpet, after the boxes started bursting and leaking onto the carpet. I am so disappointed - I have been buying UHT milk for many years (not really the PnP brand), but would definitely not buy it again. I am not happy. - I wasted my money and could have spend it on a better product.<br> <br> The two batches I bought has the following info:<br> <br> Prod 24/07/2015<br> Exp 24/01/2016<br> 11:26:37 D/F<br> <br> Prod 06/07/2015<br> Exp 06/01/2016 DF<br> 08:07:50