Let me share you some facts.

The agencies in the Philippines knows that the required salary for housemaid is $400 as per new Law and infact a housemaid applicant is not allowed to travel by our Immigration at Manila airport when the contract salary is lower than the said amount.

Again, the agencies are aware that the offered salary by the employer is 750riyals equivalent to $200 only. The housemaid applicant is aware on that too. Which means, both the agency, the housemaid and the employer are fully aware on the fact that the salary is $200 dollars only!

What the agency do?
Write down the job title in the contract as "utility worker, food server, cleaner and other post like that" which is usually an 8-hours work per day with free accom. and food allowances and a salary of $200 dollars. Or another way is to make 2 contracts. "One" is to write down salary of $400 as Domestic Helper, but that contract is valid only till the airport and another "one" is the original contract from the employer stating $200 salary which is valid upon arrival..... So that, the housemaid applicants can pass thru the Immigration at Manila airport.

Now, I'll leave it for you to decide whom to be blamed in this scenario? ;)