different locations, countries have different standards on this kind of thing, my suggestion would be contact a legal aid department and ask them what to do in this situation because in some locations an "order" is a legal matter, in some situations a person is not allowed to defy an "order" example military people must not ignore a situation like this.

one thing is that here in america no matter who the person is anyone can report anyone if they are a danger to their self or others, for example if someone who knows me feels Im being a danger to myself or others they can tell someone (a treatment provider, police....) and those people by law are called mandated reporters, which means they must follow up on it when they receive information that someone may be a danger to their self or others. but usually what happens is the police are contacted and the police do a well check. usually treatment providers do not call people who are...not....their clients out of the blue and say hey this is an order you need to come see me.....unless the order is a court order...

my point something like this cant be figured out online, only you can answer your questions. Im assuming right now at this moment you are not still hanging onto the phone given the time stamp on the post so that right there says you already did hang up on this person. we cant tell you what to say to her because we are not you, we are not in the situation we do not know what lead up to this phone call... so many issues that we online are not privy to.

again my suggestion would be contact a treatment provider or law enforcement or legal aid and ask them what your rights and responsibilities are. they will be able to track this treatment provider down, figure out why they called you and then figure out what you are legally obligated to do.