Punjab National Bank [PNB] — Refund initiated by Amazon but still not received

My name is SHABEEBA K P and I had done a recharge of Rs:209 in Amazon on 03/01/2022.The recharge was not successful but the amount was debited from my account. The refund was expected to be credited on 08/01/2022.But I didn't received any refund and when I contacted Amazon customer care they told me that they initiated the refund to my card on 08/01/2022 itself and gave me this Refund Reference No: 30005120032003088342633 and asked me to file a complaint in order to get my refund.
So, kindly respond to this complaint and refund the amount at the earliest.