Instruct: Classify an Amazon review into positive or negative sentiment.
Query: ok product but terrible service from Digital Media Source and Amazon

Product worked ok for the first 45 days. Then it completely stopped working. I plug in the base, and no lights come on - its completely dead. I am now outside the 30 day return policy (by 2 weeks), and I have so far sent 2 emails to Amazon customer service, and one email directly to Digital Media Source. NO REPLY AT ALL. I will try to contact the manufacturer next, but I am frustrated with this extremely poor customer service.