I got an email this morning from the FCC granting my vanity callsign request. My original (auto-assigned) callsign of KO4ZSY is now changed to my requested vanity vallsign of K3KBF.
https://wireless2.fcc.gov/UlsApp/UlsSearch/license.jsp?licKey=4602660
❝ Calling CQ CQ CQ
Hello CQ CQ CQ
Here is Kilo three Kilo Bravo Foxtrot
K 3 K B F
Calling CQ and Listening ❞
KO4ZSY 
K3KBF
K3KBF