State Bank Of India [SBI] — Refund not received in my bank account

I ordered some books from Amazon and paid the money via BHIM UPI which is linked to my SBI bank account. But due to some issue I have to cancel my order and also Amazon sended me the refund after cancellation of the order but I didn't recieved the refund in my bank account . Amazon also gave me the refund reference number . The refund money is Rs 886 and the refund was given on 19 May 2022 by Amazon pls look into the issue ..