Ibibo Group / Goibibo — Refund of a cancelled trip

Booking ID - GOFLDNTYJQ45FVJN5206
I booked a flight from Leh-Mumbai through GoIbibo on Indigo airlines. Due to change in plans, I cancelled my flight directly at Indigo airlines site. The refund it said would be credited by GoIbibo.
On submitting the refund request at the GoIbibo portal of my trips ... modify bookings... submit refund request... it flashes a message for 2-3 seconds as contacting airlines, and the screen goes blank. Tried it 8-10 times, same result. There is no customer care of goIbibo email link to lodge the complaint as well.