If you have an old criminal case from before 2000 and can't find its status using the current e-court system due to a three-digit case number, you'll need to take further steps. The case number generally remains the same for older cases, so you won't be issued a new one. Your best course of action is to contact the relevant court directly with all case details or consult a local lawyer who can inspect the judicial file and advise on the necessary proceedings to obtain the updated information.