Amazon — I m complaint about refund not credited

Address:	amazon india, 110094
Website:	www.amazon.in

Refund of rs. 575/- has been made by amazon on 11th of october 2019 regarding a product (Order number is #[protected]
"the reference number of the refund is ref - #[protected]
But, the refund has not been received yet.
Bank is saying no amount has been received by them. I've talked to them again and again but no responss is coming. So i need to file a"charge dispute" on them, to get the full details.
I need bank to resolve this issue as soon as possible or i'm gonna take some legal action