Paytm Mobile Solutions — request for bank transaction failed amount

I paid the amount 485.09 to irctc connect app at jan19, 2019 with order id: [protected]. After amount deducted from my wallet train ticket is not booked. I raised this request to irctc team many times but they said we had already refunded the amount but somehow bank denied from the refund process. I sent emails to paytm but they didn't help me to get my refund. I need my amount back...