Instruct: Classify Amazon reviews into positive or negative sentiment
Query: the cd you sent me was cracked so I cannot play it! I need to return it to you for an exchange. Please contact me.

Please contact me as you sent me a cd that has a crack in it. It will not play. I was trying to show it to my class at school and was very disappointed that it was damaged. This is the second time I've received a defective cd from you.