Inviation to add computer does not work

Hello Philip,
I can see that you have already contacted our remote support and they have helped you to install AVG Secure VPN. Please be informed that the AVG Zen has been removed from the  AVG Internet Security latest version so you may not be able to send invitation for your other computers. Feel free to contact us again if you need any further assistance.
Best regards,
Alok.

I have tried to send an invitation to add a computer to my subscription but it does not appear to send. It says it sends the email but it doesn't appear on any of my devices.  Any idea what I can do or what the problem is?

Hello Philip,
I can see that you have already contacted our remote support and they have helped you to install AVG Secure VPN. Please be informed that the AVG Zen has been removed from the  AVG Internet Security latest version so you may not be able to send invitation for your other computers. Feel free to contact us again if you need any further assistance.
Best regards,
Alok.