The licence includes number of modules. Can these modules be moved between servers and stay licenced? I guess this is not possible and will need IA help to re-shuffle the licences between servers -right? I have EAM module in mind which was possibly activated on the wrong server.
A license is not divisible.
Third-party licenses are usually separate keys, and those could be moved.
You'll need to call your sales rep and have them help you. They will need to update details of your license key on our end -- it's not something you can do on your own.