How do I turn my VPN on?

Hello Graham,
Thank you for contacting AVG Community Support.
I see that you wish to know how to turn VPN on.
I’m going to try my best to help make things better for you.
Could you please let me know on which device you wish to Turn your VPN On? Is it mobile or Computer/laptop? 
You can use AVG Secure VPN any time you want to connect to the internet with extra security and privacy, and is especially recommended when you are connected to a public or unsecured Wi-Fi network.
To connect to AVG Secure VPN, click the red (OFF) slider on the main AVG Secure VPN screen so that it changes to green (ON).
Also, you have received an email from us, that is asking you to turn on the VPN.
Could you please share the screenshot of the email that you have received?
Here is an article for taking the screenshot: https://support.avg.com/SupportArticleView?l=en&urlName=avg-create-screenshot&q=screenshot&supportType=home (https://support.avg.com/SupportArticleView?l=en&urlName=avg-create-screenshot&q=screenshot&supportType=home)
You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions. Thanks in advance.
Thank you and keep us updated.