Instruct: Classify the given Amazon review as either positive or negative.
Query: CUSTOMER NO SERVICE

Over the last three weeks, I have made several attempts to contact this seller which have resulted in NO RESPONSE. They have not returned phone calls or e-mail inquiries. All phone calls end up on an answering machine, e-mail requests have gone unanswered.In my contact efforts, I detailed the problem and gave contact information, they have not bothered to return calls, answer my question or offer any assistance.This is my last ditch effort to get some sort of assistance.