Air India — Refund against cancellation

Got the ticket cancelled on 19th Jan 2022 under full refund. Customer care initially told that it will be done in 7 to 14 days. Second time told it will be done in 21 days. Third time asked me to fill feedback which was done on 8th Feb 2021 with details below:
Reference Number : WB-IDEL[protected]
स्थान / Location : Delhi
फीडबैक प्रकार / Feedback Type : Enquiry
श्रेणी / Category : Delay / Cancellations
उप श्रेणी / Sub Category : Delay/Cancellation
उड़ान प्रकार / Flight Type : INT
उड़ान संख्या / Flight No. : AI120
यात्रा तिथि / Date of Travel. : 03/Feb/2022
टिकट संख्या / Ticket No. : [protected]
विषय वस्तु / Content: The ticket No[protected] booked on 12dec 2021 in Name xxxxxx Vyas in AI120 from Frankfurt to New Delhi was cancelled on 19th Jan 2022 but till date refund has not been received
स्थिति / Status : Acknowledged
रिपोर्टिंग तिथि / Reporting Date : 08/Feb/2022 22:04