The company that offered me a position sent an email afterwards asking for basic onboarding paperwork like my 2 forms of ID, background check, drug test etc etc. But they're also asking for a copy of my high school diploma and for a minimum of 2 professional references to fill out their form. I'm not sure any of my past employers or coworkers will do it for me, I wasn't ever close to anybody. I quietly come and go at jobs. Do the references matter if they already offered the position and I accepted?