when i go to unlock my demo so i can use s2 it says (unlocks this month used) please please help me

just wait till next month, u will get a new unlocking key...if it wont unlock, pm one of da devs...

he's just MSN me saying he is still having the problem, he uses more than one pc for lfs, but has used up all his keys, and he emaile dthe devs yesterday, but to no avail