Citimanager customer service telephone number Citi's Corporate Card Customer Service is on hand to help 24 hours a day, 7 days a week throughout the year. Contact Citi customer service for immediate support with your account, card, loan, or service via phone, mail, or live chat. You have the opportunity to customize your PIN number by calling the 24-hour automated telephone system. The 24-hour CitiBusiness Online customer service telephone number is displayed, along with the telephone for TDD Access for the speech or hearing impaired. You can contact the appropriate Customer Service representative by calling the number on the back of your card or by visiting the Citi website Contact Customer Service page. You can call customer service at 1 800 285 1709 and select option 1. Call Citi Customer Service, or log on to CitiManager, to quickly obtain balance and payment information, replace a lost or stolen card, set up a PIN, check the status of your application, or set up alerts. Once set it is available for immediate use. Please call: 1-800-200-7056. For hearing impaired callers dial 1 800 788 0002. From outside the US, call collect 1 210 677 0065 and select option 3. . Please call our Customer Service Center at 1-877-601-8029 to speak with a billing dispute expert. Enter in your 16-digit DoD Travel Card account number; Enter the last 4-digits of your Social Security number Need assistance with our on-line reporting or administration tools? Our Client Account Services (CAS) and the North America technical Helpdesk is always available to help. Contact Citi customer service for immediate support with your account, card, loan, or service via phone, mail, or live chat. Citi is dedicated to providing all organizations the necessary global, regional and local resources to ensure the success of your program. bvkfi nvviq gxsujx mhigdz luvo lhxckwxap cdfbb gxvt ljhgb owtzclc