Allahabad Bank — refund from amazon shopping site

Address:

Dakshina Kannada, Karnataka, 575001

I had ordered a shirt from amazon which was a size smaller than what i expected so i had requested for the return of the product and refund the money to my bank account which is connected to my amazon. Amazon has initiated the refund of rupees 495 for the transaction done on 3rd april 2019. We have successfully returned the product. And yet the money isnt refunded due to the negligence of the bank.[protected] is the reference code.