seems my son has hijacked my multiplayer LFS.

can i buy another licence with the same paypal account ?

Quote from dodgydave :

seems my son has hijacked my multiplayer LFS.

can i buy another licence with the same paypal account ?

You can buy a gazillion licenses if you wish (please do! ). Each license becomes active when installed and unlocked and is basically endemic to the hardware that it is unlocked on, but is account-specific for online use. You can buy licenses for all of your friends from your Paypal or Credit Card account if you wish. You can also buy more than one license for your own use, LFS is governed by account names. Buy a new license under a new account name and enjoy your own account for yourself.