HDFC Bank — payzapp refund

September 27 money debited from credit card but till now not refunded to the source card. They are just sending a rrn number. Payzapp team kindly look into the issue. Message from payzapp team is below
Dear customer,

Thank you for writing to hdfc bank payzapp team.

Your relationship is very valuable to us and we regret the inconvenience caused to you

As per your query, we wish to inform you that the transaction of rs.5000/- dated 27th september 2017 has failed. The refund has been initiated back to your account on 27th september 2017 to card number ending 8702. Please find below the details for assistance & get in touch with the respective bank for the refund procedure.

Rrn number[protected]

Note - refund will take 5 working days to be credited in your source card.