Hi all. My permanent residency application is officially taking too long and I'd like to prepare and submit a carta de pronto despacho. However, I'm not sure exactly what it is or how to submit - is it a letter, like the name indicates, or is it a form that I would request and fill out at Migraciones? And once I have the document prepared, how do I actually submit it to Migraciones? Do I submit it like any other document that goes into my expediente or is there a separate process? Thanks in advance.