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

first time using, motor would come on, but no pressure. tried contacting them via telephone, impossible!! finally used 'chat' line, after trouble shooting with them for 3.5 hrs, determined machine was defective. all they offer is to repair and return the machine. wanted a new machine, as this machine was DEFECTIVE! even after speaking with a 'customer service manager', they said that was the best their company can offer. really glad bought this machine from amazon, as they will take the machine back and give me a refund.moral of story - hope your machine works ok when you recv'd it, otherwise, this company has no customer service.