General Questions
Interested in partnership or have general questions/feedback?
Please email map@discover.com.
Find the latest Discover® Global Network interchange and cash reimbursement rates and fees for your region.
Technical Assistance
For help with your Fraud & Risk Center Log In ID and/or Password:
Note: When emailing us, please do not share personal, sensitive or confidential information.
Account Incident Manager (AIM) Application
To get access to Account Incident Manager for Discover Global Network or Diners Club International, please email a completed application to DNFraud@discover.com or DCIFraud@dinersclub.com.
If you have additional questions about fraud prevention, please contact your Discover Network Relationship Manager to help direct you to the appropriate resource for assistance.
Call Discover Global Network Security at 1-800-347-3083 to report a data security breach, within 48 hours of incident.
Please contact us at dfsactivity@discover.com if you detect or witness suspicious activity on or involving Discover ® Global Network cards, products, and/or transactions or if you become aware of such activity and have questions.
General Questions
Interested in partnership or have general questions/feedback?
Please email map@discover.com.
Find the latest Discover® Global Network interchange and cash reimbursement rates and fees for your region.
Technical Assistance
For help with your Fraud & Risk Center Log In ID and/or Password:
Note: When emailing us, please do not share personal, sensitive or confidential information.
Account Incident Manager (AIM) Application
To get access to Account Incident Manager for Discover Global Network or Diners Club International®, please email a completed application to DNFraud@discover.com or DCIFraud@dinersclub.com.
If you have additional questions about fraud prevention, please contact your Discover Network Relationship Manager to help direct you to the appropriate resource for assistance.
Call Discover Global Network Security at 1-800-347-3083 to report a data security breach, within 48 hours of incident.
Please contact us at dfsactivity@discover.com if you detect or witness suspicious activity on or involving Discover® Global Network cards, products, and/or transactions or if you become aware of such activity and have questions.
If you have issues logging in or questions about the Advanced Payments Portal, please send an email to the DFS Administrator listed below:
Type approval: typeapproval@discover.com
Suspect Fraud?
Please call 1-800-347-1111 and ask for a Code 10 authorization if you suspect a transaction is fraudulent or are suspicious of the customer. Available 24/7
Technical Assistance
For help with your Fraud & Risk Center Log In ID and/or Password:
Note: When emailing us, please do not share personal, sensitive or confidential information.
Verify+ Standard or Fraud Alerts Standard Application
ProtectBuy
To request more information email protectbuy@discover.com
Third-Party Acquired Merchants
Please contact your acquirer directly for assistance on fraud prevention solutions. Click here for a list of acquirers
Data Compromise
Call Discover® Global Network Security at 1-800-347-3083 to report a data security breach, within 48 hours of incident.
PCI Compliance
If you have questions on security or PCI compliance, please email AskDataSecurity@discover.com
Discover® eCentral Merchants
Access the online reporting portal that provides you with the ability to easily and efficiently manage your card processing online.
Order complimentary signage and much more.
Check Your Point-of-Sale System
Chances are, your in-store POS system is ready to accept our network of cards.
Contact a Bank or Processor
To start accepting in store or online, contact your payment processor or find one from our list.
Technical Assistance
For help with your Fraud & Risk Center Log In ID and/or Password:
Note: When emailing us, please do not share personal, sensitive or confidential information.
General Questions
Credit Issuers: 1-800-347-9560
Debit Issuers: Call 1-877-433-3248
Prepaid Issuers: 1-866-402-1042
Speak to a Specialist
Please call 1-800-347-6634 to speak to a Discover® Global Network fraud prevention specialist.
Technical Assistance
For help with your Fraud & Risk Center Log In ID and/or Password:
Note: When emailing us, please do not share personal, sensitive or confidential information.
Account Incident Manager (AIM) Application
To get access to Account Incident Manager for Discover Global Network or Diners Club International®, please email a completed application to DNFraud@discover.com or DCIFraud@dinersclub.com.
ProtectBuy
To request more information email protectbuy@discover.com
Please contact us at dfsactivity@discover.com if you detect or witness suspicious activity on or involving Discover® Global Network cards, products, and/or transactions or if you become aware of such activity and have questions.
Fill out a merchant referral to report issues around acceptance or cardholder experience.
General Questions
Interested in partnership, having issues logging into the Discover EASI portal or have general questions/feedback? Please email EASI@Discover.com.
ProtectBuy
To request more information email protectbuy@discover.com
If you have questions about the new Discover® Global Network IIN (BIN) Ranges and the POS application and PC software updates required to ensure that all Discover Network Cards can be accepted at your POS, please register for access to the Discover EASI portal.
If you have a specific question about the Discover Information Security & Compliance program or our compliance validation and reporting recommendations, please direct your questions to askdatasecurity@discover.com.
General Questions
Interested in partnership or have feedback you would like to share? Please call 1-866-402-1042.
Or, email prepaidsolutions@discover.com.
Our Operations Center supports processing relationships, balancing concerns and rejected or missing monetary files.
Hours of Operation
Mon–Fri 8:00 am to 5:00 pm, Eastern Time, excluding holidays*
Third-Party Processors
Please call 1-513-900-3049
Address for Client Support
Discover® Global Network
P.O. Box 498181
Cincinnati, OH 45249-8181
* In observance of the following holidays, our Servicing Center will be closed: New Year's Day, Martin Luther King Day, Memorial Day, Fourth of July, Labor Day, Thanksgiving, Christmas.
Discover Financial Services Network Command Center
Hours of Operation
7 days per week, 24 hours a day
Second Escalation
Manager on duty.
Call Discover® Global Network Security at 1-800-347-3083 if you experience a breach in your system, within 48 hours of incident.
Account executives provide an escalation point for daily operational issues and responsible for business development, contracts, technical upgrades, changes to processing configuration and the processing relationship.
Please contact your Discover Global Network Account Executive directly at the address below.
Discover Global Network
Client Support Account Executive
P.O. Box 3015
New Albany, OH 43054
Servicing and Interest
Interested in partnership or have a servicing question? Email us at contactus@discover.com.
Find the latest Discover® Global Network interchange and cash reimbursement rates and fees for Canada.
All other regions, please email us at contactus@discover.com.
Note: When emailing us, please do not share personal, sensitive or confidential information.
Technical Assistance
For help with your Fraud & Risk Center Log In ID and/or Password, email us at globalfraudsolutions@discover.com.
Account Incident Manager (AIM) Application
To get access to Account Incident Manager for Discover Global Network or Diners Club International®, please email a completed application to DNFraud@discover.com or DCIFraud@dinersclub.com.
Please contact us at dfsactivity@discover.com if you detect or witness suspicious activity on or involving Discover® Global Network cards, products, and/or transactions or if you become aware of such activity and have questions.
Servicing and Interest
Interested in partnership or have a servicing question? Email us at contactus@discover.com.
Discover® Global Network Acquired Merchants
Contact us at globalfraudsolutions@discover.com.
Note: When emailing us, please do not share personal, sensitive or confidential information.
Third-Party Acquired Merchants
Please contact your processor directly for assistance. Click here for a list of processors.
To report data compromise or cardholder data breach, or if you have questions on security or PCI compliance, please email AskDataSecurity@discover.com.
Order complimentary signage and much more.
Order OnlineCheck Your Point-of-Sale System
Chances are, your in-store POS system is ready to accept our network of cards.
Contact a Bank or Processor
To start accepting in store or online, contact your payment processor or find one from our list.
Servicing and Interest
Interested in partnership or have a servicing question? Email us at contactus@discover.com.
For help with your Fraud & Risk Center Log In ID and/or Password please email globalfraudsolutions@discover.com.
Note: When emailing us, please do not share personal, sensitive or confidential information.
Account Incident Manager (AIM) Application
To get access to Account Incident Manager for Discover® Global Network or Diners Club International®, please email a completed application to DNFraud@discover.com or DCIFraud@dinersclub.com.
ProtectBuy
To request more information email protectbuy@discover.com
Data Compromise
Call Discover® Global Network Security at 1-800-347-3083 to report a data security breach, within 48 hours of incident.
PCI Compliance
If you have questions on security or PCI compliance, please email AskDataSecurity@discover.com
Please contact us at dfsactivity@discover.com if you detect or witness suspicious activity on or involving Discover® Global Network cards, products, and/or transactions or if you become aware of such activity and have questions.
Fill out a merchant referral to report issues around acceptance or cardholder experience.
Servicing and Interest
Interested in partnership or have a servicing question? Email us at contactus@discover.com.
ProtectBuy
To request more information email protectbuy@discover.com
Please contact us at dfsactivity@discover.com if you detect or witness suspicious activity on or involving Discover® Global Network cards, products, and/or transactions or if you become aware of such activity and have questions.
Servicing and Interest
Interested in partnership or have a servicing question? Email us at contactus@discover.com.
If you have a specific question about the Discover Information Security & Compliance program or our compliance validation and reporting recommendations, please direct your questions to askdatasecurity@discover.com.