Is it timetabling, you are asking about (i.e. will your teaching sessions be on the same days every week for the whole PGDip)?
As I'm sure you know, the course description states Mon-Thurs, with occasional Fridays. So I'd plan for that. They won't be able to give you specifics because they won't have done the timetabling yet for the 2025/2026 course and it will depend on room and tutor availability. It's frustrating from a planning point of view.