Evidently you don't understand the meaning of Fraud. It's not fraud if a court rules it such. If a court rules it a fact, then it's a fact. That doesn't mean it has to be true.
The court cannot be held responsible. You are obligated to know that you have been served at a fictious address, not the court.
And how is that possible?
I am not suggesting that a court be held responsible. I am suggesting that the person who made the false claim, and who has received the aid falsely, and continues to receive the aid falsely be held criminally responsible. And agencies which can be shown to have cooperated in the false and reckless disbursement of aid should be held civilly liable.