I worked as a nurse for a home ageny for a year, and I know that a qualified company has to send a replacement. Your aid has to keep records and turn them in at the days end.Medicare is really strict about documentation, that is how your agengy gets reinbursed by them. Maybe she is reporting visits she didn't make, otherwise another aid would have to come in here place. It is quite possible that the directors have no idea she is not showing up. Please call and talk to the agency director. Don't risk undoing the benefits of your surgery!!If they can't satisfy your needs, look for another agency!!