Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective on Arrival

This unit was sold as "new" but when it arrived the box looked like it had been opened and taped shut. The instructions say to plug unit A into unit B and assemble by attaching unit C. My box contained only A and C, no B, so it was returned for credit (I had to pay the return postage). I will never order from this supplier again.