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 UMS Net Pay: (866) 872-3729

For Voice Authorizations:
For Merchant Numbers beginning with 323: (800) 207-7634
For Merchant Numbers beginning with 8788: (800) 944-1111
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UMS Banking is a registered ISO/MSP of HSBC Bank, National Association, Buffalo, NY. Copyright © 2010 United Merchant Services of California, Inc. All Rights Reserved. UMS, UMS BANKING, the UMS Banking logo are trademarks and service marks owned by UMS Banking.
All other trademarks are the property of their respective owners.