Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I'm very frustrated!!!

I've ordered the product, but still did not receive it! I sent the message to the seller, and he says he "reshipped" the product, but when I asked him for the tracking number, he hasn't responded for more than a week. At this point, I'm so frustrated, I just want to forget about the whole thing, and I want my money back NOW. This is the first time I ordered anything on line, but such a poor service makes me unwilling to try order anything again!