Instruct: Classify Amazon reviews into positive or negative sentiment
Query: junk

This item was advertised to work for a Dell inspiron 6000. It DOES NOT!! The Sunvalleytek company representatives did a very poor job of comprehending my complaint, although it couldn't be simpler. I'm not convinced that they speak English well. After almost a month of emailing back and forth, they still do not understand or believe me. DO NOT BUY FROM THEM!! Also, read their return policy very carefully. It states, "be sure of what you write" and "all products will be tested." If you say it does not work, they can turn right around and say it does, without providing any proof. Then of course, no refund. Buyer, beware.