Chip Lupo, Credit Card Writer
@CLoop
To reach Citi Double Cash Card customer service, call 1 (855) 473-4583. When prompted by the automated system, enter the last four digits of your Citi Double Cash Card card number to verify the account, then state the purpose of the call or press the designated number for that issue. You may also say “customer service” when prompted, or at any time during the call. Citi Double Cash Card customer service representatives are available 24 hours a day, 7 days a week.
Other Citi Double Cash Card customer service options include online live chat and in-person assistance at a local Citi branch. You can also submit inquiries by mail or social media. For the quickest response to your Citi Double Cash Card account inquiry, Citi recommends using the live chat feature, which is accessible either online or via the Citi mobile app.
How to Reach Citi Double Cash Card Customer Service:
- Phone number: 1 (855) 473-4583
- Online: Log in to Citi online or use the Citi mobile app to live chat with a customer service representative
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Mail: Citibank Customer Service
P.O. Box 6500
Sioux Falls, SD 57117 - Social Media: Facebook & Twitter
- In-branch: ATM / Branch locator tool
Before you contact Citi Double Cash Card customer service, review the “Common Questions” section on Citi’s “Contact Us” page. You may be able to resolve your issue without having to contact customer service.

Citi® Double Cash Card – 18 month BT offer
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