[Resolved]  Jet Airways — change of flight timing

I am summon koul. I have booked series of flights with jet airways from march to may on alternate fridays from bangalore to pune (21:45 pm, 9w774). Possibly this flight has been cancelled by the airline and my flights have been changed to morning time 05:25 am that is not acceptable to me even without informing the customer. I am trying to contact customer care for last 3 days but no use. I want immediate refund the money of all the tickets to me so that i can make alternate arrangements. But don;t know whom to talk. The airlines does not respond to any call. It is the pathetic behaviour on behalf of the airlines