Syndicate Bank — amount refunded from amazon but not credited in my account

Address:

#16,ramakrishnappa road,coxtown,bangalore-560005

My name is (Kiran r) and i had ordered (Cothas coffee powder, speciality blend, 100g) of rs.48 (Cothas coffee powder, speciality blend, 100g) in amazon on (01/07/2020) and after (02/07/2020) i returned this order due to personal reason. And on (02/07/2020) amazon initiated the amount to my card but i still didn't get the money. Amazon sent this reference number (74766510185026126321909) and told me to fill charge dispute form but syndicate bank doesn't have such policy. So please kindly respond to this complaint it's very urgent. My card number is ([protected]) thanks you sir