State Bank Of India [SBI] — my refund not reflected in my account

Address:

Karimnagar, Karimnagar, Andhra Pradesh

I ordered one product in amazon on 16th august and i payed total amount through my debit card and due to some reasons i cancelled my product. Amazon returned my product to the seller. Amazon initiated my amount on 21st august and the reference number is 952414 and they informed that amount will be reflected in your account with in 3 to 5 working days but till now my amount not added in my account.