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HELP24 eSupport Portal

For all non urgent issues, please login and raise a case through the HELP24 eSupport Portal.

Quick Reference Guide - How to Open a Production Priority 1 Case with HELP24 >>


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HELP24 By Telephone

Report critical, priority 1 issues to HELP24 by telephone.

Global HELP24 call center: 1 (866) 494-4255.

Local numbers for Global HELP24 are available in the following countries:

ReD Support

ReD support can be reached via the eSupport Portal (login above). Or via telephone, only for Priority 1 issues:

U.S. +1 877-733-0099

U.K. +44 1483-794999


PAY.ON Support

Our case management system is changing! Please click here to find out more.

PAY.ON solution support can be reached at payon.support@aciworldwide.com or via telephone:

Germany +49 89 45230 290

Visit Online Documentation to access code in various programming languages, for modern platforms.