I am not sure, and I also wanna know.
I didn’t bother to talk about that with the sales further. Everything went shady and everything went dark. For that the tech team suggested me to schedule a call with the sales team if I wanted to know further. That was too much effort as customer service wasn’t supportive and a professional experience.
If your free subscription is working fine, then just keep using it. Once (if) it gets suddenly stopped (I hope it doesn’t for you), just come back here and leave me a comment.