Tranfer Activation code to another account

Hello guys
I have Cubase LE9.5 on my macbook pro
I wanted to transfer it to my PC windows 10
when I enter my activation code on pc it say that my activation code is used by another user
how I can have the activation code on my email and registered to another account
and if it’s really used by another account how I can get it back to mine

The eLicenser assigned to this Activation Code was already registered by another user.

activation codes are an one time code… no transfer possible
you have to transfer your license instead, your license is store on the eLicenser (USB or Soft eLicenser)
a starting point is the support section on Steinberg website