I know nothing about Indonesian helpers personally having only done my homework on Filipino helpers to employ one, but here goes.... Try asking the Indonesian Consulate who the agencies are that they take back handers from - sorry - I mean their 'authorised agencies'. That is how it works here I have heard. Hence the Consulate have no interest in taking on new agencies. The Indonesian agencies can get their pound of flesh from the helpers they process who are desperate for work. What is to stop them when helpers are forced to use whatever agency the Consulate says and no one polices them? I am not saying don't employ an Indonesian, or that all the agencies are bad - I am sure they REALLY need the work, but do your research online, check just how much they charge the helper. Be FULLY INFORMED of the process you are buying into which lands innocents on HK shores for your benefit and the exploitation which might or might not be taking place. Just do 10 mins looking on Google with a search like "Indonesian Consulate", "agencies" and "helpers" to get the idea.
You should read the following regarding exploitation that I think should not be tolerated in a civilised society:
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Then make up your own mind on how to do the right thing...