Indian Bank — Amazon refund wasn't reflected in my account

Address:

Amazon, Mumbai

I ordered a mobile phone Red mi note 9pro max, later I have cancelled that order. An amount of Rs. 18, 498 was paid for amazon through Indian bank debit card on 29July 2020.Then refund was initiated immediately on that day. My order ID[protected] and Refund reference number is 3000402120211120977762.please kindly solve my problem sir.