Paytm Mobile Solutions — My bank account has been debited without my auth

Address:	600017
Website:	Paytm

I ordered food through swiggy app on my phone and the transaction failed but money got debited from my bank account,
I have been trying to ask for a credit and no one is responding. The app is a fraud and has cheated me of my money pls help
The details that hdfc gave are :
Paytm has debited my hdfc bank even after the payment failed at gateway, and has not credited me the money back

Kindly do the needfull

Date :- 30 apr 2017

Narration # [protected]-paytmbundltechnologi

Cheque ref#[protected]

Amt in rs :324.00