Air India — Refund of Ticket cancelled

I reserved a ticket on November 13th, 2021 and it’s been cancelled without any notification. We asked for refund for the amount deducted. Initially they said it will take 21days for refund after 21 days when I called them they said to submit feedback from and then they said o wait for 7 days and now again they asked me to submit another feedback form and asked us to wait 45 days
It is really such a worst experience we are having with air India, every time they transfer our call to supervisor or manager it just disconnects or it just goes to feedback survey. Really needed to get the credit back for the ticket amount