Bank Of Baroda — charge dispute form against amazon refund

As i have requested for a refund of 219.00 on amazon has been made by amazon on 25th feb 2020
"the reference number of the refund is ref - 75503720056038283912491.
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 responses 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.