Instruct: Classify the given review into positive or negative sentiment.
Query: Not FDA approved.

After receiving an email from Entirely Pets informing me that this product will not be manufactured in the future because it is now not FDA approved, I gave it one star. I would actually like to give it no stars because I am returning it for credit and ordering another product that is safe for my dog. It took 25 minutes on the phone with Entirely Pets to convince them that they should allow me to return the product for credit. I feel that companies, no matter what they sell, should stand behind their products. If this were a human supplement not approved by the FDA, would you take it? Wouldn't you expect to be able to return it for credit if you were ordering something in its place?