Punjab National Bank [PNB] — I'm complaining about refund.

Address:

Dalmia House, Bank Road, Dhamintola, Gaya (Bihar)

I want my money back from refund.
Matter is, I ordered a product from Amazon by bank & i cancelled that product at the same time. Amazon company generated my refund by mail. I've received mail regarding refunds on 21/02/2021. But problem is my bank didn't refund my money because i didn't receive any msg from bank.
Please help me for refund my money back
I already complained here but didn't solve my complaint.

Account No. :- [protected]

Refund date & amont :[protected] & 587.00

Refund Reference # 30005110351035213099765