My teacher lost my project...

So I was awake till late at night, completing the project for summer vacation.

I had to submit it, and I did.

Then my teacher tells me after a week that she can't find my project and if I had submitted it.

It should cost me 5 marks, will the school lie about my marks to the board or will it go straight ahead and deduct 5 marks? Cuz I dont think anyone deserves it.

Cuz there are witnesses who saw me submitting the project.

Can I report it to the authorities or should i just wait for things to unfold?