Bank Of Baroda — amazon refund of two purchases

Address: New Delhi, Delhi, 110045

I purchased two bags from amazon on 22nd april and 23rd april. Amount was debited for both the items. I cancelled one of them. And returned another. Today 3rd may ive received no refund yet.
Contacted amazon several times but they said refund is already initiated it should have been in account by now contact your bank. I called bob cust care but query is still unresolved.
The authorization code (Refund reference number) for the transaction is[protected],
And the authorization code (Refund reference number) for the transaction is[protected]