HDFC Bank — Amount reversed/credited message received but amount is not reflected in account

I made transaction through debit card on 30th November, an error occurred in page but amount 42619 debited from my account. one day later I received message from HDFC bank amount has been credited/reversed to my bank account.it's more than 6 days amount is still not reflecting in my bank account also no one is from phone banking or support have appropriate answer to this.
Please help.