You can chat with customers while you can see the same page they are browsing and much more !!!
The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.
1.0 First Release
Free live chat App
Chat and Engage with Your Customers to Increase Conversions!
A premium live chat and help desk software for customer service and online sales.
PreMadeKB - Readymade Knowlegebase Articles for WHMCS - With Images and 444+ Articles on cPanel, Plesk, DA, Softaculous, etc.
Find a client with his PIN code & be sure that the request is legit.