Existing customers
Get help with your POS or card terminal
For businesses already using a system set up by GCMS.
Card payments down right now, or anything else? Call us. The team that supports existing customers picks up — not a sales line.
In-office support
Monday–Friday, 8:00 AM–5:00 PM Central
Technical support
Available 24/7
Not urgent? Email support:support@gcmspos.com
If card payments stopped
Try these first
- Check that the internet modem and router have power and their lights look normal.
- Restart in order: modem and router, then POS stations, then printers and card terminals.
- Try a small card sale before reopening fully.
- If your system has an offline mode, check whether it switched on — and switch it off once you are back online.
Preparing for storm season? See the hurricane season POS readiness checklist.
What to include
- Your business name and location
- Which device or screen has the problem
- What happened and when it started
- Any message shown on screen (a photo helps)
Never send card numbers, passwords or bank details — here or by email.
Call support
Call us for help now
Calling is the fastest way to get help. Tell us what you’re seeing and which system you use.
850-995-4414In-office support
Monday–Friday, 8:00 AM–5:00 PM Central
Technical support
Available 24/7
Our team
Email support:support@gcmspos.com
Support from our team at the Cadenhead Legacy Center, 5784 Chumuckla Hwy, Pace, FL 32571
BBB Accredited Business