Canara Bank — payment not received in my bank account

Address:

Farrukhabad, Uttar Pradesh, 20962

My name is vishal singh and i had ordered saree of rs.382 (Indira designer women's art mysore saree with blouse piece) in amazon on 08/05/2019 and after 14/05/2019 i returned this order due to personal reason. And on 15/05/2019 which refund initiated
Amazon initiated the amount to my card but i still didn't get the money. Amazon sent this reference number 202379 and told me to fill charge dispute form but indian bank doesn't have such policy. So
Please kindly respond to this complaint it's very urgent. My card number is [protected]
Thank you sir