Indian Bank — refund issue from online shopping store

Address:

Coimbatore, Tamil Nadu, 623501

My name is ravanth and i had ordered top bird metal inner and outer ring for bike for rs.899 in amazon on 16 the dec 2019 and after on 17 dec 2019 i returned it for personal reason. After that refund was issued on 22 dec 2019 but still i didn't get the money. Amazon sent the reference number #451t3ve00000k424jnnk and told me to file charge dispute but indian bank doesn't have that policy. So, please kindly respond to the complaint.
Thank you sir!