@HDFCBank_Cares
It tooks 21day to investigate (in prvs mail you said that we will reply to you before 21st oct and you mailed yesterday just to clean your record) I recommend everyone not to use hdfc credit card as they don't have secure transaction.. Below is screen shots.
This Is a case of my sister, where some one debited 57k from her credit card without any OTP. When we registered the complaint they said we are investigating.. moment the amount debited she received a whatsapp message that if it is not done by you please select no @HDFCBank_Cares