We need a custom payment gateway for WHMCS. This should not be difficult, as all you have to do is read the how-to manual provided.
WHMCS: [url removed, login to view]
Free trial: [url removed, login to view]
The How To Guide: Create a Payment Gateway Module
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You will need to work on a free trial installation and let us have the files to add to our installation
The information we need sent via the gateway is the usual purchase form information