I am team leader with a staff who filed for an immediate resignation. I informed her that she will need to render 30 days notice. she adjusted her resignation letter then filed a leave for a few days. When she came back, she said that she really needs an immediate resignation as she is already starting with her new job. Our boss claims that he will file a case and requested me to create a return to work order for him to sign. what cases can our company file against my staff?