They may be wanting to release her because they dont want to pay to send her back but be careful expat, make sure you have full consent of her employer and such. Also you need to apply for a visa for a filippina maid, once you get that she will have to have an NOC from her currently employer. They will have to cancel her RP because they cannot bring another maid without doing so as they are only allowed one maids visa. If this is all done and you have a visa in hand she will have to leave the country (there is a flight to Bahrain with QA) and come back on the new visa.

Not all maids are suited to all families. She may be great in your house whereas they will tell you she was terrible. Ask her employer how much they pay her (this would have been what she asked for initially from the recruitment agency) and if you feel it is low offer her a few hundred more. You can always increase it later if you find she is good but if you take her from another family you will not get the agency protection such as being able to change the maid if you find she is indeed not for you.

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"Diplomacy is the art of saying 'Nice doggie' until you can find a rock - Will Rogers"