Paytm Mobile Solutions — refund of my money credited to paytm mobile solutions

Good afternoon,
On june1st 2019, I got a call from shine hiring regarding registration for job openings.Through netbanking 23000/- was debited from my account and credited to Paytm mobile solutions.
After one hour i know that, it was a fraud call, I complained to bank against refund of my money.Now bank team is asking for merchant confirmation mail regarding refund of money.

Please look into this matter and send a mail regarding refund of my money.

Payment Reference Number: 01JUN2019INB/[protected]/PAYTM MOBILE SOLUTIONS PVT against amount of RS. 23, 000/-