[Resolved]  Indigo Airlines — not informed about the product discount

Address:

Gurgaon, Haryana

I had booed a ticket in indigo on july 18 from coimbatore to chennai, the amount was 2139 rs while booking i tried to book the ticket in student offer 6e but the website said the offer is applicable only till july 31, but now they had extended the offer till december 31, as i had not informed it was a loss for me, so when i asked them to add the student offer to my ticked now they are not doing it, and they are asking me to cancel the ticket and book a new one with an cancellation fee of 1568rs which is totaly ridiculous, so please help me