You are concerned that your IPv6 address is leaking.
How do I check if my IPv6 is leaking
You can visit https://whatismyipaddress.com/ and you will be able to see if your location is being leaked.
While using your InvizBox device
IPV6 addresses are not supported on InvizBox devices. All InvizBox devices automatically block IPv6 addresses so you do not have to worry about your location being leaked while using an InvizBox device.
While using your InvizBox VPN subscription with OpenVPN
If your ISP supports IPv6 your true location can be leaked when using your InvizBox VPN credentials with OpenVPN. Our servers support IPv4 only and we do not handle IPv6 addresses at all.
The best way to address this is by disabling IPv6 on your device.You can find out how to do this online.