I am so curious that why did she call your husband and told him she back to HONGKONG. And the other thing is that why did not you change your door lock after you fired your ex-domestic helper.
""我寫了信去入境處話佢偷野架.."" << That's not an evidenance to prove your domestic helper break the law. They only acknowledge legal evidenance.
"""佢可能改了名再黎過..."""<<< Yes, they can change their name easily in their country. That's why they do not afraid to lose the judge in court.