Paytm Mobile Solutions — Amount is not refunded in my bank account

Hi,

I had requested for 500 recharge in my paytm account but the limit was already exhausted so it was not successful.
It is showing that amount has been refunded in my account but the bank is saying they didn't receive any amount.
I called the customer care but it is automated call service and they are not helpful in this case.
They are giving the message that amount will be credited in 2 days but now it is more than 5 days and didn't receive any call or support.
Please help to look into the issue.

Thanks
Niharika Singh