Indigo Airlines — high cancellation charges

Hi team,

I have charged 2250/- as cancellation charges in indigo airline against the ticket price of 3500/-, that mean i am only eligible for 1250/- as refund amount. Please note i am cancelling the ticket for 25th nov 2017 which is 32 days before from scheduling. Not getting any clarity why this charges is very high. As per the customer care it is there company policy. I have written an email to them. Please check the attached document.

This is my humble request to you all please verify why the charges is high and also help me for the same. This kind companies just trying to get more revenues with public money illegally.

Hope i will get the proper response from you