Amazon India — not received refund in bank account amount 899rs

Address:

151b,ROHINi nagar near 7NO.Bus stop jagatpura, Jaipur, Rajasthan, 302017

Refund of rs. 899/- has been made by amazon on 16th of may 2019 regarding a product (Order number is #[protected].
"the reference number of the refund is[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.

Mayank jain