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The easiest way to contact the Citi Simplicity Card customer service is online, either by logging into your account or through Citi Mobile app, or by calling them at (866) 696-5673. From the automated system, enter the last four digits of your Citi Simplicity Card number to verify the account, then state the purpose of the call or press the designated number for that issue. Or, say “customer service” at any time during the call to connect to a live representative. The Citi Simplicity Card customer service representatives are available 24 hours a day, 7 days a week.
Other Citi Simplicity Card customer service options include in-person service at a local Citi branch and contacting representatives by mail.
Here’s how to reach the Citi Simplicity Card customer service:
- Phone Number: (866) 696-5673.
- Online: Log in to Citi Online or use the Citi Mobile App to live chat with a customer service representative.
- Mail: You can also reach the Citi Simplicity Card customer service by mail:
Citibank Customer Service
P.O. Box 6500
Sioux Falls, SD 57117
- In-branch: Find a Citibank branch or ATM.
Before you contact the Citi Simplicity Card customer service, you should refer to the “Common Questions” section on their “Contact Us” page. You may get the answer to your question without having to call or log in to your account.
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