EaseMyTrip.com — Refund not initiated for cancelled ticket

This is with regard to cancellation of the flight from Nagpur to Pune PNR no. R7MKXP, dated 2nd Aug'2021. I booked the ticket from EaseMyTrip.com, the flight got cancelled by the airlines for which I have not received the refund of INR 4496/- till date. I have been following up since then. There is no proper response. I was ensured that I will get the refund of the cancelled flight, since it was done by the airlines.

Kindly help to get this resolved ASAP.