Amazon India — Amazon is not giving my money

Address:

Mata khudi lane Mahendru patna Bihar

I had booked train ticket on 27th August from amazon pay later and on 27th September I paid 3500 then on 29th September I canceled the ticket then I got an email from Amazon in which it was written that after cutting 1700 railways cancellation charge I will get back 1765 I haven't received it yet, I talked to customer care on October 10, then I was told that I will get the money on October 12, but today is October 19. I haven't received any money yet. I also talked to the customer service representative but no one helped me plz give me my money back, I Didn't Expect This From Amazon Very Disappointing and very bad customer service.