HDFC Bank Credit Card Customer Care Timings You can contact our Credit Card Customer Care department 24 hours, on all days, including Sundays and bank holidays. HDFC Bank customers with savings accounts, current accounts, loans, debit cards, credit cards, and other financial products at the bank can access customer service via phone, email, SMS, or by visiting a branch. The HDFC Bank customer care service is dedicated to addressing queries, resolving issues, and handling grievance redressal for customers. Find HDFC Bank customer care numbers for all India locations. Get quick support for your banking needs. Check hdfc Customer Care for all types of inquiries. Check 24x7 (all days) helpline number for Debit card, credit card, Loans and other financial queries of hdfc Bank.