Bank Of India — Amount not credited in my bank account.

My name is Rohit balu kshirsagar and I had ordered (Pibox india Raspberry pi 4 8gb Easy cool 8 combo kit 4823w with pi4 8gb ) of Rs Amount of 8298 in Amazon on 13 may 2021 and after 24 feb 2022 I returned this order due to personal reason. And on 2 mar 2022 Amazon initiated the amount to my card but i still did not get the money .Amazon sent this Reference number (36140) and told me fill charge dispute form but bank of india no give the solution.
Thank you sir.