does anyone know how to switch an individual account to a student account?
I think it’s only possible when you join a class, but then you can’t become a regular player again, so just forget about it. As a regular player, you have access to the same levels (and a lot more), so there is really no added value.
You can become a regular player again, you will have to contact support. I have had all of my students that joined my class become “free” players again so that they can continue, my school is not yet willing to pay for code combat courses