Can't activate license on iPad

Ok, in short:

I have a multidevice license F-Secure Total Security & VPN.

I installed Freedome on my iPad and was misled by the term "I already have a license...". If you click this, then Freedome wants some code or activation ID - but nothing worked.

It was the wrong way to do: If you already have a multidevice account you simply have to sign-on in to this account.

The user interface is not clear hear. I think F-Secure has to improve in general.

ID/Account/License-Code/Activation Code/Mulitdevice/from official partner/etc. - WTF!?

Keep it simple!!! Help forum is full of problems caused by the too complicated license system!