Bank Of India — charge dispute

Address:

Ramgarh, Jharkhand, 829150

With due to respect, my self Govind from Rajrappa project, Ramgarh. Sir I had tried many times to contact in your costomer care number but unfortunately I am not successful.
Sir I want to say that I had ordered an product from Amazon.in, but due to some reason I had been returned the product to Amazon but as it was on online payment I had already been paid for it and as I have been returned the product I have to refunded, but due to some technical problem I didn't get refund yet as there policy they had provided me an Refund Reference number # 75260828179020991804950

And had emailed # Please contact your Bank customer care centre and had quote these numbers and I got refund within 4-5 days.

So kindly provide me some help, Or provide me Charge Dispute Form so that I will submit it and handover to Branch.
I am always thankful to you.

I am waiting for your response