Amazon India — Refund not received since more than 4 months

Website:

www.amazon.in/prime

Its been more than 4months and i have still not received my refund. I contacted amazon customer service and they told me that they initiated the refund, but the money has still not shown in my account.
They also provided me with a refund reference number and said me to visit my bank but due to lockdown it is not possible for me to visit my bank branch right now.
The refund reference number is[protected].
My bank account is in sbi.
I will be getting an amount of rs.1399