Punjab National Bank [PNB] — Payment not received

Address:

Nayagarh, odisha

Excuse me
I have purchased a Milton bottle worth 677 from amazon and the next day I returned it. They said they have done the refund but till now I didn't get that in my account. After that, I consult with amazon customer service as well as my bank customer service and amazon service provided me the Refund reference number for that and said to fill a charge dispute form against the bank. But there is no other way to do that so I'm writing here
please help me to resolve this problem
I am attaching the screenshots below
Refund reference number # 30005110241024003913728