Air Pegasus — No refund for flight cancelled by airline.

Address:	Bangalore, Karnataka, 560030
Website:	www.airpegasus.in

I had booked a flight from Bangalore to Trivandrum for travel on 15.08.2016 PNR- LM1GT6. However the flight was cancelled by the airline, and refund of full amount was promised by the airline.But I have not received my refund even after 3 months, despite repeated follow ups. Mails written to the airline are not replied and calls to their call centres are never answered.
Such behaviour is unethical.