Canara Bank — refund not received for train booking

Address:

2CSUSHAMA APARTMENT,175/92OLD CALCUTTARD, 2CSUSHAMA APARTMENT,175/92OLD CALCUTTARD, 700122

Dear Sir,

I have booked train ticket through paytm on 05/07/2019 and the debit amount was 6344.45. However the train was cancelled and refund of 3260, 3260 rs was supposed to be refunded back on 16.07.2019. Out of which only one 3260 rs was credit in the bank account on 26.07.2019. Another 3260 is yet to receive. When I contacted paytm they informed that credit amount was initiated for the account.
Reference number received from bank for refund is 17203019200928638799907 and 17203019200928638799881. From this two reference number I have received one amount, another amount is yet to receive. I have mailed to canara bank head office and Barrackpore Branch office regarding the issue but they did not respond.
Please help me in receiving the refund amount.
Please find the screenshot for reference.

The email id: [protected]@canarabank.com
Phone no: [protected]

Thanks & Regards,
Tania Dutta
+91 [protected]