Instead what happens is that each day you get 12%, say, of your 100, and that goes to your internal account and it will become available for withdraw 3 24 hr. periods later (that's what I've set it to). Then the next day's interest of 12% of that 100, again goes to your internal balance, but is held for the next three 24 hr. periods before you can w/d it. You see? This continues until the entire 12 days are done, and the last interest deposit of 12% on that init 100 will be held for a final 3 24 hr. periods.
So... you can request a withdrawal as soon as enough of the interest deposits go out of being held and accumulate past $3 as that is the minimum w/d amount. And that's how that works. The difference between that and say 12by12daily, is that in the latter you actually had to wait 12+5 or more days to withdraw ANYTHING. In this case, you can withdraw within 3 24 hr. periods, if it's over the $3 min. You see? It's nice! Confusing at first, but after you understand it you will see that you have the freedom to start getting your spends back just after 3 24 hr.