Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I received a bad bulb, contacted the seller who promise to send me another bulb, which never happen. Buyer beware

I received a bad bulb, the bulb the seller send to me looks new but has three rings running around inside it and it does not work. I contacted the seller who promised to send me another bulb, which never happened. Buyers beware, this seller is a scam, buy at your own risk. I lost money in this transaction, bad, bad, bad transaction.