Indigo Airlines — Flight delay

Flight number 6E 735 which was scheduled to fly at 7:15 PM from blr to delhi has been delayed. I had booked this ticket because I had to reach delhi early and also i paid extra money for this while booking. The flights later than this were priced lesser. I feel cheated by the company, as I had paid extra for reaching earlier at delhi but now neither can i reach early moreover had i booked flight at later time would have cost me lesser