What is the official mailing address and email to send a complaint to HDFC Bank? When it comes to filing complaints, I need to send one to HDFC Bank. However, I’m unsure about the official mailing address or email to use for complaints. I want to ensure I’m sending it to the correct department to avoid delays and get my issues addressed as quickly as possible. I’ve heard multiple addresses, and it’s confusing—so I really need help confirming the correct contact point for complaints.