That business is really risky. Whatever their staffs done illegally, they are the ones liable. You must manage your staffs carefully, never trust them when it comes to money.

Only applicants can tell if they were offered job contract or not which is most illegal in our country.

I have known IELTS agencies and their business is purely teaching english.
They're still exists and students value their programme.

I wish our government sympathise them as their children suffers.