I called them and they told me an agent will look over my case and see if they can mail me a stamp or if it requires an appointment. I'm sure you can guess, they booked an in person appointment for me. I'm pretty sure they will just tell me the same thing at the appointment as they did last time (which is no, cancel the application and reapply under the correct reason). I don't plan on going but I can't cancel my appointment as I don't have the required pin number to cancel it. What a great system.