There are many aspects to this issue which remains unclear. If your friend exited Qatar then her visa should have got cancelled. At least, that is how I understand things. How did she manage to come back? Did she get an exit-reentry visa from her sponsor? It does not make sense as the sponsor has shut down her business as stated by you and given her a one-way ticket. Why will the sponsor reply to her emails? She has nothing to do with her now. I guess that she would need to get to the authorities immediately and be prepared for deportation. Talk to the captain as I suggested earlier at one of the immigration offices and get the correct information on this. She may be able to return on a new visa later on and her new sponsor could guide her on this.