cheated us by giving used and old machine

Location/place: kandivali (E)

Name of company/service: flipkart

i took an eireka foerbs vaccum machine costing 7975rs by online from flipkart 1 month before but that maching is not working now , i called up at flipkart they said that they will not refund us bcoz 1 month is over then i called up eureka forebes they sended a man he said that machine is old and already used even thought he will repaire it will nt work more then 1 month , its my request dat take action either refund me or else replace my machine as fast as u can please