First Data 24/7 Help Line 1-800-228-0210
Merchant Support
Technical Support: 1 866 917 4868
Disputes/Chargebacks: 1 888 292 2608
Merchant Supplies Order Desk
Telephone: 1 866 883 1494 (option 2)
Hours: Mon-Fri: 24hrs/day Sat-Sun: 6:00am to 12:00am EST
Voice Authorization 24 hrs/day – 7 days/week
Visa/MasterCard: 1 800 555 5707
American Express: 1 800 528 2121
Discover: 1 800 347 1111
Customer Service 24 hrs/day – 7 days/week
American Express: 1 800 445 2639
Discover: 1 800 347 2000
