Once again, no one will know how your uni practically deals with these issues. Only your uni, department and SU will have any clue.
If it is urgent, give your uni a call. Turn up in person and demand someone in the law school deals with it immediately. Don't waste your time dallying around with students at a multitude of different unis, all of whom have no practical knowledge of how your anonymous uni deals with this sort of thing.
Best of luck.