Indigo Airlines — Refund not being issued

Sir/Ma'am,
I booked my ticket from delhi to bhubaneswar on 2 dec, 2016 for 23th jan 2017.
I paid through net banking.The amount has been deducted from my account but I had not got any confirmation of my reservation. I dont have the booking reference and no itineary.
The mail from indigo says u will be refunded in 4 days if tickets are not booked and its been 4 days .
when are u refunding the money?

I will be thankfull if you kindly look into it.
Details:-
Name Sushmita Nath
DOB:-21/03/1996
registered email id:[protected]@gmail.com
registered phone no;-[protected]