Skip Navigation
Official website of the United States Government U.S. Department of the Treasury
Bureau of the Fiscal Service Home
CAS
Card Acquiring Service

Contact Us

Customer Technical Support

If you have an inquiry/request about:

  • Terminal Support
  • Reconciliation and Reporting
  • Billing Inquiries
  • Ordering Equipment or Supplies
  • General Support Needs

Please contact the U.S. Treasury Support (Hours: 24/7) by phone or e-mail at:

NOTE: Please include your MID number (Merchant ID) in the subject line of your email.

866-914-0558 RMTreasury@worldpay.com

If your inquiry/request is not in reference to any of the above categories, contact the CAS Agency Outreach Mailbox at:

CardAcquiringService@fiscal.treasury.gov

Last modified 03/21/24