Perhaps the special EV road tax? Since ICE cars pay road tax through gasoline they added like a 200 dollar something fee for EVs to cover "our" portion.
I think I figured it out. Georgia DMV is charging me twice for the annual Alternative Fuel Vehicle Tax because my birthday (aka the anniversary date) is like a month after my Tesla delivery date. So Tesla paid DMV the full tax when it was delivered and now Georgia DMV is sending me another bill because it's now the anniversary date. I think I am going to send a note to Tesla to see if I can get some of this reimbursed (i.e. like the portion included in the final payment at the time of delivery)