i totally understand your situation, i am suffering the same as you. she will leave next month, but she is working like a part time, listen to music, talk on phone, sit in her room more than doing housework. what i can do is to control my temper, otherwise you don't know what you will eat.
but you need to pay her both way tickets, call the agency to confirm, but try to quote the price from cebu pacific, they have the cheapest one. since you don't really need to buy ticket, because she already have one return ticket from precious boss. i am so glad to share my terrible experience with you. cheers, take it easy.