Im level 2 in a level 4 final? what?

OK, so I'm wondering if someone can fill in the blanks here; I was in a cup final today and in my cup history it says season 2 level 4.

Can anyone tell me why it says that? Its my first full season and says manager level 2 rookie top left. The other manager was the same as me as far as I can see.

Because the highest level opponent in your cup is level 4.

Do remember that you do play against different level opponents in the cup.