Spice Jet Airlines — flight rescheduled and delay

I booked a flight from patna to pune for 14th february, 2019 scheduled at 9.55 a. M and was rescheduled without my permission to 2.25 p. M and that to via ahmedabad with a 3.5 hours halt. The flight from patna was also delayed by half an hour. I missed my last date to submit my exam form. Look into this inconvenience of mine. I'm too disappointed with the services provided.