C***** fresh milk not so fresh anymore

C***** fresh milk is terrible of late, it gets spoiled to a point of clumping and clotting well before the sell by date. We have been buying c***** fresh milk for years now but recently the milk quality is of a very poor standard. We purchased from different stores and still have the Same issue. I attempted logging a complaint via their website but after filling in all the fields and uploading pictures abut 7 times, the website kickse out, very frustrating. I purchased over 20 2litres over the past 3 months but sadly the same thing happened all this time. Tired of literally throwing my money down the drain