Union Bank Of India — Refund not processed by the bank

My name is Tarunendra Jaiswal and my ubi account no. is [protected]. I had to get the refund amount from Amazon which I had talked several times to both Amazon and UBI customer care service but they didn't get processed. The amount is Rs499, it has been almost 2 and half months.
Here is the transaction ID given by Amazon:[protected]. I have also put the screenshot of the refund confirmation through Amazon. Kindly make my refund at the earliest.