Nanny agency recommendation

Hi, i just did an email enquiry to at least 6-8 confinement agencies 2wks ago. Standard 28 days fees just for nanny - Cheapest $3.5k for the smaller agencies, and most expensive quote was pem at $3.9k. I went with pem as they are more professional in their reply and the sales deck more comprehensive. A couple of the smaller ones just reply me with two sentences when i asked wat tasks the nanny will cover (i first time mom here, really duno haha) and i dont have patience to write to/fro to clarify.