Congrats! I still haven't heard anything. POI JC and applied for GA position to mentor a climate-related REU. Have a few offers, so not terribly worried (anymore). Can you say how you were notified? The USF portal is more confusing than others.
I recently just experienced a similar situation. I was offered a position into a prospective PhD program, and was told the final decision from the graduate school would come shortly after. I was worried because my undergraduate GPA is lower than what the graduate school required, but sure enough I received a decision letter a few days later confirming that I was indeed accepted for admission!
Rejection from TAMU, acceptance from University of Utah (full funding RA) and acceptance from OU (scrambling funds together to offer RA). Still waiting on ASU, CU, and USF. All PhD programs.