Automated IVR (phone)
If your card was blocked by the bank due to suspicious activity or if you cannot access your online accounts, calling customer care is the best route. Steps to unblock: unblock hdfc credit card
Authenticate via IVR using your customer ID and registered mobile number, then request to unblock. 2. 📱 HDFC Mobile App / NetBanking Automated IVR (phone) If your card was blocked