So today DS has received a notification from Cambridge for a pre-interview assessment that would mean he needs to apply for a leave of absence next Wednesday (the assessment needs to be done at home due to the technology requirements).
It says it is NOT confirmation of an interview, rather it's a "pencil in the date" notification.
Somewhat oddly however, the date they have given to confirm if he has an interview or not (and thus if he even needs to do the assessment) is 2 days after the date they have told him to book off....