How to contact Citi credit card customer service
Citi operates separate phone lines for credit card customers depending on what you need. The main customer service number for general questions, account changes, and billing issues is 1-800-950-5114. This line is available 24 hours a day, seven days a week.
If you are calling about fraud or a lost or stolen card, use 1-800-645-5061. This line also operates around the clock. Have your card number ready when you call, though you can report a card missing even if you do not have it in front of you.
You can also reach Citi through their website at citi.com by logging into your account and using the find message center. This method works well for non-urgent questions that do not require an when ready response. Responses typically arrive within one to two business days.
Key Takeaways
- Call 1-800-950-5114 for general account questions, billing disputes, and changes to your account; call 1-800-645-5061 for fraud or a lost card.
- Both phone lines are staffed 24 hours a day, and wait times are usually shorter during business hours on weekdays.
- You can message Citi through your online account for non-urgent issues and receive a response within one to two business days.
- Have your card number, Social Security number, and recent statements available before calling to speed up the process.
- Citi also offers a mobile app where you can view your balance, make payments, and report problems without calling.
What information to have ready before you call
Citi's customer service representatives will ask for your account information to pull up your records. Have your credit card number available, or at minimum the last four digits. You will also need your Social Security number or the phone number associated with your account.
If you are calling about a specific charge or billing issue, have that statement in front of you. Write down the transaction date, the merchant name, and the amount. If you are disputing a charge, knowing whether you authorized the transaction or not will help the representative understand your issue faster.
For fraud reports, you do not need your card number — in fact, Citi will ask you not to read it aloud over the phone. Instead, be ready to describe what happened: when you noticed the unauthorized charge, which transactions you did not make, and whether your card was lost or if you believe someone accessed your account number.
Billing disputes and fraud claims
If you see a charge you did not make, call the fraud line at 1-800-645-5061 as soon as you notice it. Citi will place a temporary hold on your account and begin an investigation. You will receive written confirmation of the dispute within 30 days, though the investigation itself can take up to 60 days.
For billing disputes that are not fraud — for example, a charge that was supposed to be refunded or a duplicate charge from a merchant — call the general customer service line. Citi will investigate and respond in writing. Under federal law, the bank must acknowledge your dispute within 30 days and resolve it within 60 days, though many disputes are settled faster.
During an investigation, you are not responsible for the disputed amount. Your credit report will not be affected while Citi looks into the claim. Keep records of all communication with the bank and with the merchant, including confirmation numbers and dates.
Account changes and payment options
You can make many account changes without calling. Through your online account or the Citi mobile app, you can update your address, change your password, set up automatic payments, and request a credit limit increase. You can also view your full transaction history and read statements.
If you need to change your name on the account, add an authorized user, or close your account, you will need to call customer service. The representative will walk you through the process and answer questions about how the change affects your account.
To make a payment, you have several options: pay online through your account, use the mobile app, set up automatic payments from your bank account, or mail a check to the address on your statement. Payments made online or through the app are usually posted the same day if submitted before the cutoff time, which is typically 8 p.m. Eastern time.
Wait times and best times to call
Wait times at Citi customer service vary by time of day and day of week. Weekday mornings between 8 a.m. and 10 a.m. Eastern time tend to be busier. Early afternoons and evenings usually have shorter waits. Weekends and holidays are typically less busy, though some departments may have reduced staffing.
If you are on hold, Citi will give you an estimate of how long you will wait. You can also request a callback instead of staying on the line — the representative will call you back at the number you provide when it is your turn.
The fraud line (1-800-645-5061) usually has shorter wait times than the general line because fewer people call it. If you are reporting fraud, you may get through faster by calling that number even if your issue is not strictly fraud-related.
Using the Citi mobile app and online account
The Citi mobile app and online account portal let you handle many tasks without calling. You can view your current balance, recent transactions, and available credit. You can also read statements going back several years, which is useful if you need to dispute an old charge or verify a payment you made.
The app includes a feature to report a problem with a transaction. You can describe the issue and upload photos of receipts or other documents. Citi will review your report and respond through the app or by email within one to two business days.
If you set up alerts in the app, you can receive notifications when your balance reaches a certain amount, when a payment is due, or when a large transaction occurs. These alerts can help you catch fraud or billing errors sooner.
What to do if you cannot reach customer service
If you are having trouble reaching Citi by phone or if you have a complaint that customer service did not resolve, you can file a complaint with the Consumer Financial Protection Bureau (CFPB) at consumerfinance.gov. The CFPB will forward your complaint to Citi, and the bank must respond within 15 days.
You can also write to Citi directly. The address for written correspondence is on your statement and on the Citi website. Written complaints sometimes receive more attention than phone calls, especially if you have already called multiple times without resolution.
If your dispute involves a large amount or a pattern of errors, consider consulting a consumer attorney. Many offer free initial consultations and can advise you on whether you have grounds for a claim.
Frequently Asked Questions
How long does it take to dispute a charge?
Citi must acknowledge your dispute within 30 days and resolve it within 60 days under federal law. Most disputes are settled faster, often within two to four weeks. You will receive written updates as the investigation progresses.
Can I call Citi at night or on weekends?
Yes. Both the general customer service line (1-800-950-5114) and the fraud line (1-800-645-5061) are staffed 24 hours a day, seven days a week. Wait times may be longer late at night or on holidays, but representatives are available.
What if I need to report a lost card after hours?
Call 1-800-645-5061 any time, day or night. Your card will be deactivated when ready, and a replacement will be mailed to you. You can also report a lost card through the mobile app if you have it installed on your phone.
Do I have to pay a disputed charge while Citi investigates?
No. You are not responsible for a disputed amount while the bank investigates. The charge will not be counted against your credit limit or reported as late if you do not pay it during the investigation period.
Can I request a lower interest rate by calling customer service?
Yes. Call 1-800-950-5114 and ask to speak with a representative about your interest rate. They may be able to lower your rate, especially if you have a good payment history. There is no harm in asking, and the call takes only a few minutes.