1. Once you're accepted by Freedom, it takes a few days to let it bee shown on YouTube dashboard.
2. You must've accepted through E-mail to accept the network invitation.
3. If you've had this problem for more then a week, contact Freedom support team (via ticket)
4. Check your Freedom dashboard and see if your account is active and linked
If it isn't active, it means you've not accepted the invitation from Freedom via E-mail or you've not gotten the invitation from Freedom. I'd ask the support team (Chat or ticket) to see if they can check it out for you.