Included with Select Citi® Cards
If we notice anything unusual happening to your account, we'll contact you.
As a Citi cardmember, you can be assured that we are constantly trying to improve ways to help safeguard and protect you and your account. Through monitoring of our customers’ accounts, we detect most fraud or unauthorized use, often before you are even aware of it. If we notice unusual activity on your card, we may contact you by phone, text, email* or mail to confirm you have authorized that purchase.
If you suspect your account has been used without your permission, call Citi cards Customer Service immediately at 1-800-950-5114 (TTY: 1-800-325-2865). We can then assist you in assessing the risk to your account and determine the appropriate action.
*Note that we will never ask you to provide confidential information through text or email.
Outside of the United States,
Call Citi collect at: 605-335-2222
24 hours a day, 7 days a week