Instruct: Classify Amazon reviews into positive or negative sentiment
Query: did not work, waiting on reply

Although i ordered one i was sent two and received them within 7 days, neither one of them worked. i am not quite sure if they need to be formatted or what, however I am waiting on a reply back from the sender to see if formatting is the problem or if they just need to refund me my money. I have been waitingfor over 2 weeks now for a reply!?!?!