New Helper terminating old contract - Visa Application process?!?!

I have a quick question I was hoping someone could help me with; we have found a Filipino helper to mind our baby girl, she was terminating her current contract and tried to process the new visa application herself. She had her interview yesterday and she was told she will need to go through an agency.
Having waited 6 weeks for this interview we are now really tight for time and need the visa processed as soon as possible. I have contacted Fair employment agency and Arrow agency both tell me the processing time will be 9-11 weeks. The helper however found an agency who says they can process it in 4-6 weeks, the agency is called Yan Yee Employment & Trading.

In short what I'd like to know is what is the estimated timeline for this type of visa application and if Yan Yee Employment and Trading is a ethical agency.

Any help you can give is much appreciated.