Central Bank Of India — Refund is not credit in my bank account

I had ordered an item from Amazon namely Samsung A31 and had return the order on 22/12/2021 and the refund had been processed for the refund amount of Rs. 14992 and but yet I am not receive the refund and it's been over 16 days and the amount has not been credited in my bank account (i.e., Central Bank of India) yet.
my order id is[[protected]]
Reference number for Rs. 14992 refund is 30005113411341168187452
please do the needful at the earliest possible