GoAir — immediately return the airfare

Address:

Kolkata, West Bengal, 700080

Hi
Pnr:ib8r5x
From: kolkata to hyderabad
Date: 21.08.17
Flight number g8

The take off time was 6.45am and i was present there by 5.30am but the flight took off before 6.45am without boarding me when i was carrying the boarding pass.
No staff numbers were there in the the gate and extremely non cooperative, worst airline.
Immediately refund the money or wil take legal action.

Shubha soumya sarkar