Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Stopped working in three months after bought on Amazon

The CHI hot iron is usually a good product. We ordered through Amazon and unfortunately it stopped working after 3 months. Also unfortunately, Amazon's return policy is good for only 30 days and it nulifies the manufacturers warranty. It was supposed to be a new CHI so I thought it was safe to take a chance and save a few bucks. I was wrong.