Union Bank Of India — amazon refund not credited

I have order a product from amazon on 27/07/2020 for Rs 6, 184/-, amazon has refunded the said amount on 27/07/2020, but the said amount has not been credited to my account till now (05/08/2020), I tried called amazon they have informed that the amount has been refunded to my account on 27/07/2020 and has sent the Refund Refreance Number to enquire with the bank, hence to follow up with the bank. When I tried to call the Union Bank of India customer service they are just escaping by saying that the amount has been refunded from amazon and the same will be credited shorted, if not call back again but they are lossing their patience to listen the refund referance number # 30005402100209000288460. The same thing is repeating again and again from this Union Bank of India, please I request your goodself to do the needfull as early as possible or atleast try to convieny your problem to the customers. Banks are not only for making profit, they should listen to the problems of the customer and to solve it as early as possible. Meanwhile I expect a better result, before I step into Cousmer Dispute Reddressal Forum to file a dispute against Union Bank of India, which would be a shamefull part on the said bank or a concerned authority who is most responsible.