its health issue. as I understood from our PRO, in case happened for company employee, he needs to exit (with exit permit of course),
his visa will be automatically canceled and the visa approval of same nationality can be reused as far as no RP is issued.
I m not sure if its the same rule for house maid.

you know Zackm the receptionist at immigration sometimes doesn't know which counter you are looking for so simply they will say no need just need to exit