[Resolved]  Amazon — I don't get refund

Dear Sir/Mam,
I am vishal Kashyap i bought a ether-net to RS232/485 converter worth rs.6900/- form amazon on 17 Dec 2020 but seller cancel the order due to less quantity in stock and refund me purchase amount on 22Dec 2020 but the amount is not reflect in account i asked to amazon customer service support about it they told me that refund is transfer in my account i have to ask in bank and give me a reference no. i asked to bank customer service support about it then they told me that there is no amount refund in my account bank told to ask to amazon both Bank & Amazon are told me to ask each other.
Please resolve my problem as soon as possible i stack in it from 1 week but no action taken by any one. Other details are given below.

1.Refund Reference no given from amazon:-
#75105170358003585466054
2.Product Name:- usr-tcp232-410s rs232/rs485
3.Order ID:[protected]