The placement fee allowed by POEA rules and regulations originallly was P5,000.00 only, this amount will cover ur medical, NBI, and other administrative costs of the agency. This was later increased to P8,000.00 and this is the prevailing placement fee. On top of this, the agency is supposed to be paid by the principal an "Agency Fee" the amount of which depends on the "Agency Agreement" between the foreign principal and the local agent-representative. Because of illigal practices by Philippine Agencies, most foreign principals pay between US100 to 300dollars only.

Now, your question is how much your agecy should legally charge you with placement fee? the answer is P8,000.00 only. If your agency charges you more? then write the POEA and show proof that you are being charged more than the amount allowed by the rules.

If you have agreed to pay a month of your salary, the basis should have been the basic salary only.

But going by your disclosure and the prevailing rates here in Qatar, your salary as document controller is way below the standard. You should be receiving at least 2000US plus housing allowance plus other benefits.