I received a zero in my Calculus final.

Today in my college I got my grade back and I got a zero for my final that I STUDIED for. Honestly what the fuck? I did study and practice so I don't know what happened?

A) I DID get everything wrong. B) I forgot to put my name. C) I used pen on the scantron.

I did use pen and I'm guessing that's why. I had no idea that they will give me a zero. I can't even email the teacher to ask her if I messed up on the scantron. Grades are already submitted. This is bullshit.