Pritunl is and Open Source OpenVPN Client. It is easy to install and coiffure using profile link you received from Forthscale.

click on the link you got.

It will lead you to your user profile on designated VPN server.

Keep in mind link is valid for 24 hours from sending!

Your profile page will look similar to:

First download the client software.
FYI, you can always install the latest version of client from here: 

once installed, start the client application 

and click on import profile URI.

Now enter the URI you can see in your pritunl user profile page.

it starts with pritunl://

Now you have a profile set up.

To connect to the VPN just click on menu

and click on connect