"there is almost $1B unused and frozen"

The last I read was that VZ placed the proceeds of a $315m debt issue in the account but this doesn't necessarily mean it was all placed there or that it was still there when the account was frozen. Banks are notorious for moving funds around when the account might be frozen. Remember also that Huntington is owed $130m or so (owed since at least 2002) and won't have agreed to lift the injunction without some assurance of getting their share.

At a guess, at most $10m is there, but it is just a guess, do you have a source for $1 billion?