I’m also unlimited user and i simply asked support if i can have it enabled. They asked me what i think i would send per month and if it would be more than 500 mails or 1000 or something. I said like 10 mails per month max :D Some invite links, weekly logs and maybe a pw-reset for all my services and thats it.
Then they just enabled it for me without any extra payment or stuff
Thanks to another user i got home assistant notifications with TTS running.
So everything can stay muted and i can let the phone talk via home assistant. Neat part is that this works even with both our phones lost and i can just ask my voice assistant where my phone is and it starts speaking