Checked my online update it says they sent ref on October 30th 2012...any idea what is it gone be about and how long it takes to receive the mail? and who receives the mail me or my lawyer?

I thought i sent enough proof
Bachelor degree diploma
Community college and University- transcript
School Transcript
School ID

however after reading other peoples comments...I realize that i did not sent any proof from 2007 to 2012. The only thing i sent them was the addresses that i was living at that time.

Applied in California
Date applied August 20th
Receipt Received August 23rd
Bio metric notice date September 11,
Appointment date October 2,
have yet not received ref letter ??????