Instruct: Classify Amazon reviews into positive or negative sentiment
Query: dont buy from this company!!!

I bought a Sony lamp that was suppose to last 3 years and it didn't even last a year. I attempted to get a refund or have them replace the lamp but they said it was past the 6 month warantee. They did not stand by their product and now after a year, I will have to spend another $100-200 to replace it.