Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nextel Customer Service is horrible

Nextel has the worst customer service. I have called them several times and talked with numerous service reps. I have asked to talk to supervisors and asked for call backs and have never recieved one. Nextel needs to start to care about their customers they have now rather than trying to get more customers. I have three phones and have been talking to them on and off for months and still nothing with my bill has been taken care of. I bought three i90s and was suppose to recieve them at a reduced cost and when I got my first bill I had the wrong plans and I was overcharged for the phones. Nextel is terrible.