Instruct: Classify Amazon reviews into positive or negative sentiment
Query: bad service

Within a year, there are problems with my menu dial knob. It became stucked which makes it almost impossible to switch between modes. I send my camera to Nikon for servicing, took them a whole 6 weeks to diagnose the problem. Worse of all, they claim that it's some kind of internal damage and refuse to cover the cost via warranty! They wouldn't repair my camera unless if I pay $100 for parts(?) and labor!It is a good camera in terms of the function and quality, but take your chance with it because Nikon absolutely sucks when it comes to customer service.