Merchant Services Center:
1-800-347-2000
Call Mon - Fri 9:00am to 6:00pm Eastern Time, excluding holidays1,
or submit your request online
Merchant Security Department:
1-800-347-3083
Call Mon - Fri 8:30am to 4:30pm Eastern Time, excluding holidays1,
or submit your request online
Si requiere mas asistencia (en espaņol)
1-800-347-7009
Call Mon - Fri 9:00am to 6:00pm Eastern Time, excluding holidays1
Authorization & Address Verification:
1-800-347-1111
Call 24 hours a day/7 days a week
For Signage and Supplies Information or to Order Signage:
1-800-347-2000 Submit your order online
1In 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.
Merchant Processor:
Note: If you are an Acquirer Processor, click here
Contact Information:
Voice Authorizations: 1-800-347-1111
Address Verifications: 1-800-347-1111
Merchant Services: 1-800-347-2000
Data Compromise Notification:
If you experience a breach in your system, notify Discover Network Security within
48 hours at 1-800-347-3083.
Client Support:
Operations Center contacts support processing relationships
balancing concerns, rejected or missing monetary files.
Hours of Operation - Monday through Friday: 8:00AM
to 5:00PM Eastern Time
Third Party Processors 1-614-283-3352
Address for Client Support:
Discover Network
P.O. Box 3015
New Albany, OH 43054
Client Support Account Executives:
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.
To contact your Discover Network Account Executive directly :
Discover Network
Client Support Account Executive
P.O. Box 3015
New Albany OH 43054
Communication Issues for Network Connectivity
Hours of Operation: 7 days per week, 24 hours a day
