Note: If you don’t communicate with the Embassy of USA in Amman, Jordan either by phone, mail or email as soon as they receive your case, and instruct them to send packet 3.5 (Immigrant Visa Packet) to the Beneficiary address given by the Petitioner either by the phone, mail or email, they will send the packet back to the address of the Petitioner (Agent) in the USA.
Out of experience the best and fastest way to communicate with the Embassy is by E-Mail: ResponseAmman@state.gov
When you communicate by email, don’t forget to include your case number and all the necessary information about the petitioner and the beneficiary.