I have ASFU licensing and I am trying to register my CSI but it is impossible. Is there any restriction about ASFU licensing?
I don't know any restrictions here.
Best would be here to contact your license source. Call the company where you got it please.
BTW where do you try to register it / use your CSI? at support.oracle.com ?
In this page there is a Registration FAQ and a Contact Support link as well. You may able to use these too.