Customer Support
The Diners Club Help Desk can be accessed worldwide at the following phone number.
+1(866) 284-5105
Additionally the Help Desk can be accessed in North America at:
(800)951-0474
To contact the Help Desk by email please use the following address:
(dcihelpdesk@discover.com)
(Please note, the Help Desk will respond to your email inquiry within 24 business hours.)
Hours of Availability
Diners Club Help Desk is available 9:00 AM to 9:00 PM (EST) Monday through Friday with closures on US legal holidays.
System Availability
The Global Vision web site is available twenty-four hours a day, with the exception of any scheduled maintenance.
Additional Phone Numbers
Help Desk can be accessed at the following toll-free phone numbers:
| Country | Phone Number |
| Canada | +1 800 951 0474 |
| Italy | 00 800 3463 7743 |
| Switzerland | 00 800 3463 7743 |
| United States | +1 800 951 0474 |
Contacting the Help Desk by email
Help Desk can be reached by email at the following address:
(dcihelpdesk@discover.com)