Ease my trip - Full refund of flight fare which was rescheduled by Vistara Airline

I had booked a flight via EaseMyTrip for **th Jan **** from Delhi to Trivandrum in the morning and wherein the return trip also was scheduled for the same day back in the night from Trivandrum to Delhi .However the morning flight was rescheduled for the next day by the airline and since I had to travel for legal requirement the purpose of the trip was nullified. I approached my contact in Vistara who helped me to cancel the ticket with Nil Cancellation Charges however EaseMyTrip charged ***** as Cancellation Charges for No Show and tried to refund *** which is absurd. I shared the screenshots from Vistara team to EaseMyTrip staff but I didn’t get any support from them. They have cheated me of ***** though no fault of mine