Citi Customer Care Number: How to Reach the Right Team Quickly

Primary Citi Customer Care Numbers (United States)

If you need fast help from Citi, start with the dedicated lines below. Phone numbers can vary by product, so the number printed on the back of your card or at citi.com/contactus is always authoritative. The lines listed here are widely used by U.S.-based customers and are staffed 24/7 for most card-related needs.

For international travel or if you’re calling from outside the U.S., Citi provides a collect number for credit cards; keep it saved in your phone before you leave the country. Always have your card or account number ready, along with recent transaction details for verification.

• Citi Credit Cards (general servicing, billing, disputes): 1-800-950-5114 (24/7)
• Citibank (banking accounts, debit cards, online banking): 1-800-374-9700
• Report a lost or stolen Citi credit card (U.S.): 1-800-950-5114 (24/7)
• Credit cards – international collect (from abroad): +1-605-335-2222 (call collect)
• Costco Anywhere Visa by Citi (consumer): 1-855-378-6467; Business: 1-855-378-6468
• Citi Identity Theft Solutions (fraud support): 1-800-386-6614

Official website: https://www.citi.com/contactus. If a number you see online doesn’t match Citi’s site or your card’s back, do not use it—phone scams are common. For in-branch assistance, use the locator at https://www.citi.com/locations to confirm hours and services before visiting.

Corporate address (for reference, not for payments): Citigroup, 388 Greenwich Street, New York, NY 10013. Common credit card correspondence address: Citibank, N.A. – Customer Service, PO Box 6500, Sioux Falls, SD 57117. Always verify the correct mailing address on your statement, as payment and dispute addresses can differ by product.

Which Number to Use and What to Have Ready

Use 1-800-950-5114 for most credit card issues: balance questions, payment posting, late fee reviews, APR inquiries, travel notices, authorized user changes, and charge disputes. If your card is lost or compromised, call immediately to block the account and request a replacement—Citi can overnight a replacement in many cases within the U.S. (shipping speed may depend on time of day and location).

Use 1-800-374-9700 when the issue involves bank deposit accounts (checking, savings, CDs), debit cards, wires, or online banking sign-in. If you have both banking and cards with Citi, the agent can transfer you internally once you’re authenticated; this is often faster than hanging up and redialing another queue.

Before calling, have these details ready: the last four digits of your card or account number, your ZIP code, the last four of your SSN or your security word, and the amount/date of your last payment or a recent transaction. For fraud or disputes, note the merchant name, date, and dollar amount. Citi may send a one-time passcode (OTP) to your phone or email—do not share that code with anyone except the Citi automated prompt or a verified Citi agent.

Alternatives to Calling (When You Don’t Want to Wait)

The Citi Mobile App (iOS/Android) and citi.com offer in-app secure messaging and chat for many routine requests: statement copies, card replacement, travel notices, rewards questions, and transaction lookups. If the chat bot can’t solve it, you can usually escalate to a live agent during extended hours without leaving the app.

For specialty cards (e.g., Costco Anywhere Visa), the fastest path is typically the product-specific number on the card back. Some cobranded programs maintain their own servicing queues and can verify your account more quickly than the general lines.

For written correspondence (disputes or formal notices), include your full name, last four digits of the account, and a clear description of the issue with supporting documents. Use certified mail if deadlines apply. Payment addresses and dispute addresses can differ—confirm the exact PO Box on your statement or at citi.com/contactus before mailing.

Travel, International Use, and Emergencies

Before traveling internationally, add a travel notice via the Citi Mobile App or by calling 1-800-950-5114 to reduce the chance of declined transactions. Save the cards collect number—+1-605-335-2222—in your phone. If you lose your card while abroad, call collect as soon as possible; Citi can often arrange emergency cash disbursement or expedited card replacement depending on your location.

Many merchants outside the U.S. require chip-and-PIN for unattended terminals (e.g., train kiosks, gas stations). Most Citi credit cards are chip-enabled and support PIN for cash advances; ask customer care to set or confirm your PIN ahead of travel. Currency conversion typically uses network rates plus any applicable issuer or network fees—check your card’s Schumer Box or pricing disclosures for foreign transaction fees (some Citi products offer 0% foreign transaction fees).

If a transaction is declined while abroad, try a smaller amount first or an in-person purchase; if it still fails, contact Citi via the collect number to review fraud rules and lift any blocks. Keep a backup card and a second communication method in case your mobile number cannot receive OTPs overseas.

Security Best Practices and Escalation Paths

For suspected fraud, lock your card in the Citi Mobile App and call immediately. The fraud team will review unrecognized charges and issue a new card number if needed. Under federal law (Reg Z), your liability for unauthorized credit card transactions is limited; timely reporting helps ensure provisional credits while the investigation proceeds.

If identity theft is suspected (e.g., new accounts you didn’t open), contact Citi Identity Theft Solutions at 1-800-386-6614 and file a report at https://www.identitytheft.gov. Consider placing a credit freeze: Experian 1-888-397-3742, Equifax 1-800-685-1111, TransUnion 1-888-909-8872. Keep case numbers and agent names; they speed up follow-ups and escalations.

• Call during off-peak times (early morning 7:00–9:00 a.m. ET or midweek) for shorter waits.
• Use the exact number on the back of your card for fastest routing to your specific product team.
• Have recent statement details handy; it shortens authentication and avoids hold time.
• If a case is complex, ask for a “reference or case number” and the department name before ending the call.
• Never share full card numbers, full SSN, or OTPs with anyone who called you unexpectedly—hang up and dial Citi directly at the numbers above.

Note: Citi supports customers in many countries. If you’re outside the U.S., find your country’s dedicated site and numbers via https://www.citi.com by selecting your location. When in doubt, the customer care number printed on your card or statement is the right one to use.

Does Citibank have 24-7 customer service 24 hours?

24/7 Customer Service
Our customer service representatives are available to assist you 24 hours a day, 7 days a week.

Who is 1300 550 216?

Reporting scams
If you believe you have been the victim of a scam, please contact us immediately on 1300 550 216. It’s important that you get in touch with us if: you’ve sent money or authorised a payment due to a suspected scam.

How do I contact Citibank about my credit card?

1-800-347-4934
For further assistance with your Credit Card account please call 1-800-347-4934. Banking customers can call 1-800-374-9700 (TTY:800-788-0002).

Can I chat with Citibank customer care live chat?

Chat With Us Online
Log in to Citi Online to chat with us. Contact the NRS through your preferred call channel detailed on NRS call numbers and links. Interpreter services for customers with limited English.