Cleartrip — refund of ticket cancelled through the site

I have booked my ticket from ranchi to new delhi for 27.04.2018 in flight no. I5 549 (Booking no: yu45vx) 27 apr 2018 ranchi ✈ new delhi through your website.
As i was unable to travel at that date, i wanted to cancel my ticket but the refund is still pending.
As confirmed by the nodal officer of the air asia, the refund is to come through the travel agency. But after 15 days this is still pending. Please help me to get the necessary refund.