University of London LLB - enrollment Watch

Hi!

I started my LLB with University of London in 2017 October, and I enrolled for 3 courses: Criminal Law, Public Law and Contract Law.

I took Criminal Law in 2018 May, and Contract in 2018 October. I did not make any attempts in Public Law.

To continue to my 2nd year, do I need to pay to keep myself enrolled in Public Law? Or is my registration continued to the next academic year until I take the exam?

Thanks a lot