Hi Goran; welcome to the board!
 
I'm not certain that I understand your comment, but my guess is that you have a bad pickup and you are looking for a replacement.
 
Alembic dealers in Europe include Bass Connection in Holland, Station Music in Germany, and Bassworld in England.
 
If you haven't already, you can check to make sure the problem is the pickup and not something else by carefully switching the pickup leads in the control cavity.  You may want to start a thread in our Troubleshooting section if you're not certain it's the pickup.