Consumer Redressal

Dear sir, i wish to file a complain against a company which sales tablets i purchased one tablet on 02-04-2013 and its display stopped working by the end of march 2014 . immediately i contacted the service center of the company and according to their suggestions i sent my device to their office at new Delhi. i regularly contacted them but all the time i got the same reply that it will be sent to you within 7 days. on 15-06-14 i received a call that you have an offer to exchange your device with an upgraded one and you will have to pay a discounted amount for the same. i agreed because i wanted to have my device back well in time. i received the new device on 20/06/2014 and paid the money. after unboxing the device i found that it is not starting up. again i called to the service center and they directed me to 3 service extensions in mumbai but non of them resolved my issue and now my new device has also been sent to delhi for repair but they are saying it may take more than two month.