Duplicate charges reported

Payment issues are usually caused by reader connectivity, firmware mismatch, or offline states. Reduce double-charge incidents.

• Check reader status in the portal.
• Inspect MDB and power connections.
• Verify firmware version and updates.

• Reboot the reader and confirm reconnection.
• Reseat MDB cables and check for pin damage.
• Update firmware if available.

• Test a transaction after every service.
• Keep antenna clear of metal shielding.
• Standardize firmware versions across locations.

• Reader remains offline after reboot.
• Payment declines across multiple units.
• Firmware update fails repeatedly.

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• Confirm all steps are documented so the next technician can reproduce the results.
• Capture before/after metrics (errors cleared, sales restored, or uptime improved).
• Review machine, reader, or route settings to ensure they match location standards.

• Skipping a controlled test leads to false positives.
• Updating hardware without documenting configuration changes.
• Forgetting to verify payout, refund, or reconciliation data after changes.

• Run a final test with known-good inputs.
• Log the outcome with date, time, and device identifiers.
• Schedule a follow-up check if the location has high traffic or seasonal demand.

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• Document changes with time, machine ID, and location name.
• Verify settings, pricing, and service modes after each fix.
• Capture before/after results to confirm resolution.

• Test with known-good inputs and controlled conditions.
• Validate telemetry, alerts, and payment logs where applicable.
• Confirm location expectations and update the site contact.

• Configuration drift after firmware or component swaps.
• Inconsistent power or network conditions at the location.
• Gaps in preventive maintenance routines.

• Monitor for 7 days and note any repeat errors.
• Schedule follow-up if the site is high-traffic.
• Escalate with full logs and photos if issues repeat.

• Validate camera calibration and lighting conditions.
• Confirm planogram and SKU mapping are accurate.

• Verify load accuracy to reduce mischarges.