Punjab National Bank [PNB] — Regarding my refund

Address:

Bhopal

My name is dhiraj b patil and i had ordered 2 sarees of rs.409 & 449 amount (Winza designer cotton saree & esomic women’s mysore silk saree) in amazon on 15 july 2020 and after 23 july 2020 i returned this order due to personal reason. And on (23 july & 26 july)
Amazon initiated the amount to my card but i still didn't get the money. Amazon sent this reference number
(Reference number #75503720206041128120378 & #75503720211041224792651) and told me to fill charge dispute form but punjab natinal bank doesn't have such policy. So
Please kindly respond to this complaint it's very urgent.
Thanks you sir