Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great customer service!

I recently bought this cash register as a Christmas present for my daughter in the hope to try to teach her money values. I was disappointed when we received the package because the toy did not work. We tried multiple sets of new batteries and nothing. The customer service department was amazing though. No problems at all with getting a replacement, we didn't even have to worry about sending the broken one back. The second one has worked and my 5 year old loves playing store with it.