Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Placed an order but never received book

Although this is not really a review, I could not find any way to express it through. I filled the order form with an American Express payment order in June. They said I would get the dictionary in august. Since this month is about to end and I have not been charged the value nor the book delivered I reviewed my account but according to Amazon I have no order placed nor delivery pending.I'm afraid to place the order again since the old order may show up and I would be charged twice. Amazon should have a place for this kind of problem.