question; how are the VPN server details and login infos delivered to the customers? Further clarifying, in what format do they receive the account details to log in?
"What is VPN Engine ?
VPN Engine is a PHP script that helps you to manage your service clients, payments and vpn servers all together.
How it works ?
1 - You rent servers from different locations, worldwide.
2 - Install OpenVPN on them and import each server details over VPN Engine administration panel.
3 - Customer purchases your service, and the system is automatically creating their vpn accounts on the servers and e-mails them with information."
It's a script mate