Thanks for the question.
It's partly a hangover from Mock 2 being part of our Additional Mock Pack (AMP), which it will be again next year. The AMP will contain Mocks 2 and 3 and we didn't used to get many submitted and so didn't create a specific marking product for either mock.
But we would charge extra for marking an additional mock due to the number we expect to be submitted, which based on past experience, will be a small fraction of the number of main Mock Exams we receive. Unfortunately it takes longer to mark scripts with which we are less familiar.
Best wishes
Last edited: Aug 28, 2019