Just got an email from Bitdefender. Says:
You've installed Bitdefender's award-winning protection on the maximum amount of devices available in your account. But don't worry. If you need to protect other devices, you can do so with just a few clicks:
Then 2 links in the email to Bitdefender Central …. I closed the email.
I logged in to Bitdefender and I see I have not used all my device availability.
?