Instruct: Classify Amazon reviews into positive or negative sentiment
Query: broken-hearted

We bought a Type-90 tank for our son who I can't describe how much he wanted one of these. When it arrived, we fortunately made the decision to test it as it was for Christmas and he wanted it so badly. The tank would not respond to the controller other than the lights coming on. We would have liked to have talked to a person at either Amazon or the company. The only contact we could make was to the company by email. They did have a number on the box to call, but after trying to call several times on several different days and no one ever answered-we left voice messages that were never answered. We did finally contact them by email. The response was at best in broken English which at one point led us to believe we were getting a $30 discount. It turns out that we would have to pay $30. It was only a $43 tank and the shipping was on us. So we just took the loss and are out the price of the tank.SO, BUYER BEWARE!