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Customer Service:

Corporate Headquarters

Merchant Financial Services
2 Greenleaf Woods Dr Ste 302,
Portsmouth NH 03801

Phone: 866-643-8500
Fax: (888) 668-2652

Feel free to email your questions to:
helpdesk@mfsps.com

President of the company:
president@mfsps.com

 

ISO Sales:
For information about becoming a Sales Agent or ISO of Merchant Financial Services Click Here to fill-out and submit an ISO Agent form online or email our sales department at sales@mfsps.com or call:

866-643-8500

 

Agent Bank:
For more Information about becoming a Agent bank Alliance with Merchant Financial Services Click Here to fill-out and submit an Agent Bank form online or send an email to agentbank@mfsps.com or call:

866-643-8500

 

 

Merchant Financial Services is a full service, ISO/Member Service Provider of Visa® and Mastercard®. We encourage anyone who might have a question, comment or concern to contact our corporate office by phone or email.

Account Support: Available from 9:00 am - 6:00pm EST, Monday through Friday. Use the following numbers for Financial-related concerns, changes & additions to service, and account-related modifications. Call:

866-643-8500


Technical Support:
Available 24 hours a day, 365 days a year.

866-643-8500

 

Retrieval & Chargeback Dept.
Available 24 hours a day, 365 days a year.

866-643-8500

 

 

Touchtone Capture Authorization:

866-643-8500


To Order Supplies:

Please call our Administrative Office. Available from 9:00 am - 6:00pm EST, Monday through Friday at:

866-643-8500

Service Support:

Convert-A-Check:
Customer Service: (866) 643-8500

Account Assistance: 866-643-8500

Your Own Gift Card:
Customer Service: (888) 433-0462

Account Assistance: 866-643-8500


Important Numbers:

Visa® & MasterCard®:
Voice Authorization Code 10 Operator Assistance: (800) 291-4840

American Express®:
Customer Service: (800) 528-5200

Voice Authorization: (800) 528-2121

Discover®:
Customer Service: (800) 347-2000

Voice Authorization: (800) 347-1111

Diners Club®:
Customer Service: (800) 525-7376

Voice Authorization: (800) 525-9040

Carte Blanche®:
Customer Service: (800) 525-7376

Voice Authorization: (800) 525-9040

Japanese Credit Bureau®:
Customer Service: (800) 366-4522

Voice Authorization: (800) 522-8788

 

 
 

© 2011 Merchant Financial Services All Rights Reserved. If you would like more information Contact an Agent.

Merchant Financial Services is a registered ISO/MSP of First National Bank of Omaha.
American Express requires separate approval.