Bank Of India — Refund initiated by amazon but not received in account

I have ordered PLQ20 CATRIDGE on[protected] of amount Rs 779. I got it on still[protected] but for quality issue I have returned that on[protected] and applied for refund. But my account is not yet credited after many times conversation with amazone customer care. They have initiated the refund having REFERENCE
Number---30005103230323124473911 on dt[protected].