Contacting Citibank is a straightforward process, with multiple channels available to ensure you get the support or information you need. Whether you prefer online, phone, or in-person communication, Citibank offers several options to suit your preferences.

1. Phone Support

One of the most direct ways to contact Citibank is via phone. Citibank provides various phone numbers based on your specific needs:

- Customer Service for General Inquiries: Call 1-800-374-9700. This number is available 24/7 for general banking inquiries, including account information, transaction details, and more.

- Citi Cards Customer Service: For credit card-related inquiries, you can call 1-800-950-5114.

- Technical Support: If you encounter issues with Citibank's online services, call 1-800-374-9700 for technical assistance.

When calling, it's helpful to have your account information handy to expedite the process. The automated system will guide you through various options to ensure you're directed to the appropriate department.

2. Online Services

Citibank’s online services are robust, offering numerous ways to get support:

- Website: Visit [Citibank’s official website](https://www.citi.com/) and navigate to the "Contact Us" section. Here, you can find answers to common questions, access live chat, or send a secure message if you're logged into your account.

- Live Chat: Available on the Citibank website, the live chat feature connects you with a representative who can assist you in real time.

- Mobile App: The Citi Mobile app provides another convenient way to manage your accounts and get support. You can send secure messages, access account information, and even find nearby ATMs and branches.

3. In-Person Visits

For those who prefer face-to-face interaction, visiting a Citibank branch is an excellent option. You can find your nearest branch by using the branch locator on the Citibank website or mobile app. Once at the branch, you can speak with a representative about your banking needs, from opening an account to resolving issues with your existing accounts.

4. Social Media

Citibank maintains active profiles on various social media platforms, including Twitter and Facebook. While these platforms are not ideal for discussing sensitive account information, they are useful for general inquiries and updates. You can send a direct message or post a question on their page, and a representative will typically respond promptly.

5. Mail

For formal correspondence, you can send mail to Citibank’s customer service address. The mailing address for general inquiries is:

Citibank Customer Service 

P.O. Box 6500 

Sioux Falls, SD 57117

Ensure you include your account information and a detailed description of your inquiry to facilitate a swift response.