I think ManagerZone shouldn't limit the amount of registration in the Federation, because the more Federation you are registered, the more participation you will have in Leagues and Cups
In this way, it is interesting for the CREW staff to review this, to release more registration in the Federations, which today is only 20
I myself, for example, am already in 20 Federations and I want to participate in more and I can't, because of the enrollment limit