Contact Information for Merchants

To contact us, simply dial the number below. A Discover Network representative will contact you as soon as possible

Order Signage

Submit Your Order Online


Surcharge Notification

Merchants who intend to surcharge Discover transactions must provide notice directly to Discover and the merchant's acquirer 30 days before beginning to surcharge.

Submit Your Notification

24/7 Fraud Prevention

If you suspect a transaction is fraudulent or are suspicious of the customer, obtain an authorization and address verification by calling 1-800-347-1111. Ask for a Code 10 authorization.


Fraud Prevention Solutions

Discover Acquired Merchants:

To get technical assistance or help with resetting your Fraud & Risk Center Log In ID and/or Password, call 1-800-347-0240.


For more information, please email us at globalfraudsolutions@discover.com.

 

Note: When emailing us, please do not share personal, sensitive or confidential information.


Third Party Acquired Merchants:

This product may be available through your acquirer or processor. Please contact them directly for assistance.


Click here for a list of acquirers.


Data Security

1-800-347-3083

Call Mon–Fri 8:30am to 12:30pm and 1:30pm to 4:00pm

Eastern Time, excluding holidays*

Questions on Security or PCI Compliance:

AskDataSecurity@discover.com


Report data compromise or cardholder data breach:

1-800-347-3083

Call Mon–Fri 8:30am to 4:00pm

Eastern Time, excluding holidays*

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Note: Please do not use this form to share personal, sensitive or confidential information.