Bests & Worsts Reviews from Amazon

I am so disappointed in this purchase. I have purchased Naked's Organic Brown Rice Protein Powder, several times. However, they have made some changes to their product, either in the processing or they have added an ingredient or preservative that they have not listed. That, or I was sent protein powder that had gone rancid. The last batch of this protein powder I received from Naked tasted nothing like what I had been using before. It was sour; something unpleasant sort of a chemically taste and unusual. I felt like gagging. I tried contacting the seller and it's now been nearly two weeks and I have not heard back.