Academic Dishonesty Violation

I have been reported to the OSSR regarding AI use for a paper. I admitted to the professor that I used AI to create an outline which violated course policies. He then accused me of using AI for the entire paper, which I did not do but cannot prove. I plan on taking responsibility for the accusations that I did do and plan to be compliant. This is my first offense and I have never been in trouble before.

My academic advisor allowed me to withdraw from the course. I reached out to the OSRR and they said that on rare occasions they will tell the Registrar to allow the professor to change the marking from a W to a F.

I know I will have other sanctions from the OSRR, but what is the likelihood that the OSRR will grant the Registrar to allow the professor to change the grade? I’m currently a senior so retaking the class isn’t an option in order to replace that grade. With it being my first offense I am hopeful that they will see that I am not getting the credit and grant me other sanctions.

Any guidance would be appreciated.