There are several things that are not clear, such as has the application already been declined? And how long ago was she made redundant? What visa is she currently on? All of these things will affect the options available to her. Unfortunately, she is in a very difficult situation, and given what is at stake, she should get some professional advice. On the face of it, if she is still here and currently unemployed without any real 'special circumstances', she is likely to have to return home in the near future.