South African Citizen to extend Chinese visa

My daughter's tourist L type for China expires on 6/6/2017. She renewed it once before. She got a job offer but now it seems that she has to go to Hong Kong to apply for another tourist L type before she can get her paperwork for a work Z type in order. Her application for a workers visa has been approved on-line, but they need more time to finalize it.
Can you please give advise on what exactly we need to do now, as time is running out and she does not want to return to SA.
Worried Mom