Urgent advise needed please

Our maid has been with us now for 7 months now, and in all honesty we were not going to renew her visa in july again. The reasons for not renewing are so long and it would take me ages to go through it all. Both me and DH are really fed up with her and can not deal with the hassel of a maid. She does not do any child care at all, she mainly cleans the house and laundry. Her attitude is poor and if she belives we are wrong she will make her feeling known, she does not like being told what to do when we ask her to do something, and will end up doing it the way she thinks things should be done.
The last 2 weeks have been really bad with her, I got to the point where I did not want to talk to her and ask her to do something for me coz i know it will not be done, so I would rather do it myself knowing it will be done. There was a lot of tention in the house. At this point DH said he was going to cancel her visa early and send her back home.

I get in a few day ago and she tells me her newborn grandson has been taken to hospital and he is really sick. I ask her what is wrong with him, she says she does not know. Anyway throughout the day she comes to me with different versions of the same story, only each time the situations is becoming worse and she says the doc said the boy will die. But she can not tell me what he is dying off. so I said to her we can call her daughter and she can pass us onto the doc, all of sudden her daughter is not at the hospital. Then she later says her daughter has just called her saying the boy is on a vetilator and is dying. I asked again to speak to the doc but she comes up with another reason why I cant. To me something seems really odd and I dont buy the story at all, neither does DH.

Now at this point am I ment to say oh gosh here is some money, I've booked you a ticket home for 2 weeks. Or do I wait for her to come to me and ask? Secondly do I owe her a ticket home? to be honest I dont believe in my heart that she will come back. If she does go home, I will cancel her visa as that is what we intended to do anyway.

So what should my next move be?