Contacting the Diners Club International Help Desk

Help Desk can be accessed worldwide at the following phone number:
+1 (866) 284-5105
Additional International numbers...

Additionally, the Help Desk can be accessed in North America at:
(800) 951-0474

Hours of Availability

Help Desk is available 9:00 AM to 9:00 PM (EST) Monday through Friday with closures on US legal holidays.

Server and Browser Information

The Help Desk may ask for the following information:

Contacting the Help Desk by email

Help Desk can be reached by the email at the following address:
(dcihelpdesk@discover.com)
(Please note, the Help Desk will respond to your email inquiry within 24 business hours.)

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