Hi there. As far as I remember you don't need to send back all the documents only the visa fee receipt, DS-230 Part 1 and the signed Instruction form. Make sure to make a copy of each document and keep it with you.
hi, i am wondering in what stage are you now? i am a filipina too living in Singapore but i am not PR. Just want to know what is inside the Packet 3, and when do we need to provide the police certificate?