Did you get a return receipt for the mailing to the prosecutor? The problem you now have is that they must receive your request at least 14 days early, which means mailing it a few days ahead but the court filing can be done later. You might be able to request a continuance and then later argue that you didn’t receive discovery. I’m not quite sure, but if the prosecutor has no intention of ever providing discovery then I would think you would be entitled to dismissal per IRLJ 3.1(b). Maybe someone else can comment further.