Air India — refund against cancellation of flight in february 2020 - booking ref hxmyg

I cancelled my flight that was scheduled for 15th feb 2020. The cancellation was acknowledged by air india. Agreed for refund through e-mail. Till date refund against cancellation is not made despite reminder through e-mail to e-commerce mail id. Payment has to made to the credit card that was used for booking the flight ticket.

My booking details of my cancelled flight are as follows:

Issuing airline : air india
Place of issue : www.airindia.in [5]
Date of issue : 15 feb 2020
Booking reference:
Hxmyg

Passenger name
Mr amitava das

Eticket #[protected]