Follow these steps to block your credit card via NetBanking
This is how you can block or cancel your HDFC Bank credit card via PhoneBanking
Contact HDFC Credit Card Customer Care at 1860-267-6161 to request that a credit card be unblocked. The official website of HDFC lists the Customer Service Center phone numbers for various cities.
If your card has been disabled by the bank due to excessive spending or unpaid debts, you can have it unblocked. Don't attempt to unblock your credit card if it was stolen or lost.
At a time when your credit card is blocked, you can still make payment through a cheque, cash, or demand draft deposit at a branch of HDFC Bank.
Download the Credit Card Closure Form from the website. Visit www.hdfcbank.com and fill up the form. After you fill it up, you should send this letter to the Manager, HDFC Bank Credit Cards, PO Box 8654, Thiruvanmiyur, Chennai-600041.
Yes, you can and this feature will allow you temporarily block and also unblock the credit card. Go to your account on the HDFC credit card net banking website and click on 'Manage Card' section.
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