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We're here to help — even after normal business hours

Please call the appropriate number below for assistance in sorting out your questions.

UMS Banking Help Desk (regular business hours):
Monday to Friday 9:00am - 5:00pm PST: (800) 866-1881

After Hours Help Desk:
For Merchant Numbers beginning with 323: (800) 654-9256
For Merchant Numbers beginning with 8788: (800) 367-2638
For Merchant Numbers beginning with 001: (888) 999-9662

For Voice Authorizations:
For Merchant Numbers beginning with 323: (800) 207-7634
For Merchant Numbers beginning with 8788: (800) 944-1111
For Merchant Numbers beginning with 001: (888) 999-9662




UMS Banking Main Office:
750 Fairmont Avenue, Suite 201
Glendale, California 91203
Local Phone: (818) 246-6767
Customer Service/Help Desk: (800) 866-1881
Sales/Business Development: (800) 324-8323
Fax: (818) 246-0902
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