This is Time4VPS provisioning module for WHMCS platform.
Setup -> Products / Services -> Servers
Add new Server
buttonTime4VPS
billing.time4vps.com
Time4VPS Reseller Module
http://<your whmcs url>/modules/servers/time4vps/install.php
as AdminImport / Update Time4VPS products by navigating to http://<your whmcs url>/modules/servers/time4vps/update.php
as Admin. Run it once, as every other request will reset any changes you made for existing Time4VPS products.