D.N.
They leave an envelope with the issue, name, number to call them back. When I had an issue I could never get hold of this woman. It has since been dismissed and purged. The envelope was actually sticking out of my mail slot so anyone could have taken it. A woman I met that had an issue because of her boyfriend kept getting notes and then warned because she was not cooperating. If you do get anything or know someone that does, make sure you keep track of calls.