Getting UCLA Regents Envelope in the mail today (Socal resident)

Got mail from Regents at UCLA?

Anyone else? I checked USPS mail and I am getting an envelope titled “Regents of the University of California UCLA Student ACCT…”

What is this? What does this mean? Im really confused, I got in ED to another school and withdrew my application?

sooooooo . . . what was it?

andddddd it was a tax form?