this was on this site
Before you can buy a license you need to have created an account here on the website. This is required, because the license you buy will be assigned to this account, so that our systems know you are allowed to unlock S1 or S2 (depending on the type of license you have bought).
Once a license has been bought and your account has been upgraded, you are asked for a special GAMEpassword with which you can unlock LFS S2, together with your username.
The license you buy has no time-limit on it, which means it's a one-off fee and in return you get access to more content, free updates and you can make use of all of our online services at no extra charge

now when i go to unlock it it says that my unloxks for the month are all used up in this is nvr sayd that i have a time limit which means is should be able to unock it as much as i want. i need help...

http://www.liveforspeed.net/?page=agreement

3. Unlock Rules and Regulations
3.1 You may install S1 or S2 on 2 computers for your own use or to race a friend on a Local Network.
3.2 You will initially be able to unlock LFS S2 or later versions 3 times. This allows you to unlock on two computers and keep one spare unlock.
3.3 We recognise that people may buy a new computer or reinstall their operating system from time to time. For this reason, we will automatically give you an extra spare unlock every first day of the month, up to a maximum of 2 spare unlocks available. The number of unlocks you have left can be found on your status page.
3.4 You must not give your username, WEB or GAME password to other LFS users.

But to solve your problem, write a nice email explaining your situation/misunderstanding to the devs here: http://www.liveforspeed.net/?page=mailus. They should give you an extra unlock


How exactly did you manage to use all your unlocks in such a short time? I have LFS since three and a half years and have maybe used 3 to 4 unlocks max