Allahabad Bank — cash back issue

Address:

PPN market Kanpur up, Kanpur, Uttar Pradesh, 208001

My name is rati singh and my account number is [protected]
I ordered something from amazon pvt lmt through my debit card and then i canceled my order on amazon on 30 september and they initiate refund on 5 october but i didn't' get my refund.
My refund amount reference number is 149772
I contacted to my bank but they didn't listen and told me to call in costumer care service of the bank and when i call costumer care service of the allahabad bank nobody picks the call.