Forgetting your Citibank username or password can be a hassle, but recovering them is straightforward. To reset your password, visit the Citibank login page and click on the "Forgot User ID or Password?" link. You'll be prompted to enter your account details, such as your ATM/Debit or Credit Card number and PIN. Follow the instructions to verify your identity. Once verified, you can create a new password. If you've forgotten your username, you can recover it using similar steps. Ensure you have your account information handy for a smooth process. For additional help, contact Citibank customer service.