Indian Bank — Refund of 8699 is stuck from Amazon India.

Address:

40/A Nehru colony Kolkata-700040

My name is (Kunj Gupta) and I had ordered (Redmi 9 power mobile phone) of RS.Amount(8699 ) in Amazon on (26/02/2021) and after (28/02/2021) I returned this order due to personal reason. And on (28/02/2021)
Amazon initiated the amount to my card but I still didn't get the money. Amazon sent this reference number
(L2LTZVNB0000KKZT6W2I) 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.
Thanks you sir