Indigo Airlines — irresponsible behaviour and playing with customer lives

Recently it‘s been in media everywhere the irresponsible behaviour from part of indigo airlines, where every now and then the news of their engine failing made headlines. According to toi, every 2flight every month of indigo faces same issue. With all this background picture, we asked them for full refund for cancelling our flight ticket. The cancellation of ticket is not because of our personal issues rather because of the ripping apart reputation of the company and their irresponsible behaviour of keeping their customers‘ life in danger. With these many technical issues in their flight who would keep their lives in danger？and it has happened not once but multiple times. Many a times flight landed different from the location it was destined to go. Knowing all these facts who would want to put their lives in danger？ but the indigo services are so bad that they are not ready to refund the money though the flight date is on 18th march. What shoul we do？