Very simple; Apparantly you can just keep playing the game after your account has been frozen as long as you stay in the game and do not disconnect. You can still log out and switch characters, as long as you stay on the same server you remain logged in until you get booted at the next server restart.
If you use some anti-afk trick someone posted here earlier you can use it during nights
Had myself 6 free days of playing last week. It may not be much, but you don't say no to freebies.