HDFC Bank Payzapp App — regarding money transfer failure

Hi team,
Last week thursday, i have transferred double time 4900 +4900 totally rs.9800 money from payzapp wallet to my bank account. Tranfer got failure and also i am getting message like"5 days money will be refunded to your wallet or bank account". Still not refunded money to wallet or bank account moreover 5 working days gone. However i have sent out a mail to to payzapp customer care two days before, still not get a mail from payzapp customer care. I am only get auto reply mail. I tried to call payzapp customer care i am unable to reach out them. Every time i am getting busy voice message.
This is my payzapp no:[protected]