State Bank Of India [SBI] — Refund initiated by amazon but still not received by sbi

Address:

sbi,rayyya

So, i have ordered a product named boat airdopes 441 pro of rs.2499 from amazon by paying through my debit card but i cancelled my order.Amazon told me to wait for 3 to 4 days for refund process and after that they have initiated the refund to my original payment method (sbi) bank but bank has not credited my money to my account.
amazon has also given me a refund reference number.
345469