Punjab National Bank [PNB] — refund form amazon.com

Address:

Dineshpur, ward no.7,u.s nagar, Udham Singh Nagar, Uttarakhand, 263160

Sir. I have to complaint about the money refund issue from the bank side.
I purchase a shoes form amazon.com on 25 december 2019. After few minute i canceled that, then after 5 days i get a messege from amazon.com that my refund is issue on my same master card. But i dont get any msg from pnb. My money is stuck somewhere in pnb procedure.. But know its almost 1 month i want my money back