[Resolved]  Indigo Airlines — non refund of money and non extension of time limit

I booked tickets from indigo airlines however my plans got cancelled and i was unable to fly, i cancelled my tickets and indigo airlines denied reversal of amount despite charging cancellation fees and asked me to book tickets within a year wherein the balance amount will be adjusted in rebooking of ticket. however i was unable to book the tickets in a year and requested them to either extend the time limit or reverse the amount but they denied for both. this kind of service from indigo is causing me mental trauma. I am feeling completely helpless and dont know what to do so that I am able to save my financial loss