Bank Of Baroda — refund has not been credited to my bank account.

Address: A 20/2 Hari Krishna park society vatva Ahmadabad, 382440

Refund of rs. 1335/- has been made by amazon on 27th of december 2019regarding a product (Order number is #[404-[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.