Disappointed customer

I bought a pack of 6X1L full cream milk from your store,with an expiry date of months to come.when I opened the 1st box the milk had a funny taste but much was not said by the consumers.come 2nd box,it was slimy and had a pungent smell.we then went and opened the 3rd box,oh boy,still the same.I sent them a message but no response,then I opened the 4th box with the hope that it might be okay,voila,still the same.now I want to know what am I supposed to do with such?I stay far away from town,an hour drive to be exact. Its not the first time such happens and I feel this needs to be addressed with the management I can't keep buying off stuff and be mute about it.