If you’re experiencing login issues with your Citi Bank account, contacting their support team is straightforward. You can reach Citi Bank customer support by calling the toll-free number on the back of your Citi Bank card or visiting their official website. For immediate assistance, use the live chat feature available on their site or the Citi Mobile App. Additionally, you can send a secure message through your online account portal. Their customer service team is available 24/7 to help resolve login problems and get you back into your account quickly and securely.