VERY POOR QUALITY OF PHONES AND SERVICE BY MICROMAX

I have purchased one Micromax Canvas Blaze MT-500 handset on 14.02.14 against invoice no.00C3E5/13-14/93 from seller Tarun co. and after receiving the product, many types of problems showed up in the handset, like as sim card problem, data not connected, sound problem, so finally i went up to the Micromax service centre at M/S Sabsonic at RGM-170 V.I.P. Road, Teghoria, Kolkata-700059 on 11.06.14 vide Job request no.E030435-0614-10169019 or R1406FWB10213568 submit the handset for repair, but still my problem is not solved. The executive the tells me each and every day that parts have not come from head office at New Delhi, so I am unable to repair. We finally received the phone in the last week of July, 2014. Its condition is worse than before. The lower part of the screen is not responding to touch. New problems have come up. We don’t think the old problems have been solved. On calling the Micromax CustomerCare on 18605008286 nobody answers the call. On trying for 3 days continuously we got someone on the line. They gave us an address of another service centre which doesn’t even exist. On reaching the address we came to know that the service centre had been closed down a long time back. We do not understand what kind of company we are dealing with.