@Jaz
Actually the problem was the auto correction function of my Ipad which I didn't realise before sending my post.
My english LVL6 entry in my licence should be enough for the job, no need to worry about my language skills.
@The Dominician
Thanks for your reply. So I will figure out what kind of agreement regarding taxation my country has with the countries the agencies are residing.
I read on the previous pages the sugesstions either for Crew or Parc, is this advice still valid?