Punjab National Bank [PNB] — Punjab national bank se refund amount related

My name is Himanshu, I had ordered a product from Amazon on 31 December 2020. Which was a power bank. But I canceled him the very next day. And Amazon refunded on January 2, 2021, along with the bank reference number, but I did not get that amount in my account. I spoke to Amazon's Customer Care, saying that it is not our fault. We have refunded the money to you. And until the bank does not give us the bank reference number, the money is not sent.Whose reference number is[protected], which was given by Amazon.

I have not been helped by the bank. My bank customer care was not helped even when it was repeated repeatedly. My money is trapped due to the technical error of the bank, but the bank refuses to accept it. I did not get any efforts even after trying in all ways. The facilities and service of Punjab National Bank is very poor. I request Punjab National Bank, and it is also my humble request that my money, which has an amount of Rs. 499/-, should be sent to my account as soon as possible

This is the detail of my bank, in which the transaction took place on 31 December. And the refund amount from Amazon was given on January 2 but the show did not happen on the account..