Consumer Redressal

I am extremely upset with my decision of buying a Nokia Lumia -720. The phone was purchased on the 10th June from Nokia Priority at City Centre -II at Kolkata. The outgoing audio stopped working since 16th June. The phone was taken to Nokia Care, Tel Solutions, Eternity Building, Kolkata 700091 on the ver next day the 17th. I was given to understand that the pone had some major manufacturing defect and the phone had to be sent to the factory at Delhi for repairs. I am at a loss to understand as to how a premium product of Nokia like Nokia Lumia-720 can stop working within a week. I would also like to mention that I have had a very bad experience with Nokia Care in the past with my previous Phone a Nokia E-75, the phone was given to them for repair and was returned to me after several reminders and mails in a very bad condition. My son bought a Nokia 710 last year and the Pone stopped working in 13 months i.e. soon after the warranty was over. I have been put into a lot of inconvenienc