Citibank does not send you email asking for your Citibank Online User ID and password, other types of password/PIN or other sensitive information. If you’ve received suspicious emails purporting to be from Citibank, please notify us immediately by calling our 24-hour CitiPhone Banking at (852) 2860 0333. Please click here for more information on fraud prevention advice.
Citibank Rewards will be down for a system upgrade from July 25, 2015 00:00 AM until July 26, 2015 6:00 AM. For inquiries, please contact the Citi ThankYou Rewards Service Line at (852) 2860 0348.
To enhance online banking security, input of Online Authorization Code (OAC) will be required for rewards redemption starting from March 22, 2015. The OAC will be sent to your registered mobile phone via SMS when you redeem rewards.
For enhancing your browsing experience in our website, please click here for more about browser compatibility information. Please note effective January 11, 2015, Citibank Online will no longer support old version of browsers such as Internet Explorer 6.
We also recommend you clearing the browser cache occasionally and relevant guidance can be obtained here.