IDBI Bank — Amazon refunded but not credit in my IDBI saving a/c : [protected]

Amazon refunded ₹ 187 on Date 01 - October- 2021 with RRN #[protected].
I talked to my branch and IDBI customer care and also Amazon customer care but amount did not credit my a/c no : [protected].
Amazon said my amount has been refunded.But bank denied RRN[protected] and amount not refunded.
Please see my problem and resolve as soon as possible.

Thanks and regards
Ram Babu
Mobile no : [protected]
Email id : ram.[protected]@licindia.com