Your case is the same as my case, my maid go to borrow from 大咩財務 when she come here the second month. The first loan she can borrow is $15000 and every month repay $18xx with 10 months repayment.
On the first day, I told her not to borrow from anyone and the financial company and I was so disappointed that she do it. She does not buy a lot of things home as she may scared that I will ask her. But she use a lot of money in calling card.
I fired her already and as I am full time at home, I give her one month notice and she will be leaving in 2 weeks time.
What a pity? Of course, I also know that she want to apply for Canada so I do not want her to stay long as it is difficult for my kid to adapt.