Air India Express — Not Yet Received Refund

Hi,
I am book Ticket Trichy To Singapore on 11 Apr 2023 . But my Ticket was not Confirmed and Money Debited my Account
I contact customer care they said will refund the payment within 14 days
yesterday also I called the customer care they said 24 hrs the amount will credit your account but still I am not received the money today I called them again they said 24 hrs will credit money
i dont know my ticket was not confirmed but money debited still i am not received the payment waiting for 15 days