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

Website:

State bank of India sbi

I have order car body cover in amazon order I'd:[protected] the car cover is to large the amount is Rs.999. so I return on 31/05/2021 Returns I'd:DXncjdqqRRMA the they refund the amount 999Rs.The refund reference no.:[protected].I have not received the amount in my bank account.
So please solve the issue and take action on SBI bank.
Thank you.