State Bank Of India [SBI] — Refund initiated but not received to my bank account

Address:

Thoubal Kiyam Siphai

I have a product from amazon worth of ₹1398 on 22 June 2020, but amazon had delivered us a demaged product. Therefore I return the product and asked to give a new one. Then I asked to refund the amount which was paid my me.
They initiated refund and amazon gave me the RRN ( Return Refference Number)
But still now the amount was not credit/recieved to my account.
RRN is 933008