Instruct: Classify Amazon reviews into positive or negative sentiment
Query: had a quality control issue

the item send had lengthily use on it because of the grease and dust on the cooling fins, as well as the fastener marks from install-untnstall. Unknown to me it was suppose to be a new unused pull-off from a new damaged unit. This was not outlined on the listing. There was some apparent mix-up on there end and they did provide a complete refund to my C Card. I disposed of it with the old one and was not installed or tested. Purchased a new one from another supplier because needed it faster.We all know things happen, no one is perfect, but ask condition before purchase just to be sure everyone is on the same sentence.