I didn't talk to the head coach in the end, I didn't need too, the coach that dd had has asked dd to have a go at a class she teaches - she starts this week and her first class is 2 1/2 hours long, dd will be the youngest by nearly 3 years in this group (as far as I know), she has a trial to see how she copes as she only just turned 7 and the rest are 9-10 plus, the coaches only concern is if dd will have any fears (I expect her too given her age but hopefully this is something that can be worked on - Beam related)
I'm glad things are moving ahead for your DD, but if I were you I would still talk to the HC to see what this group is about. Sounds strange that they only have 9-10 year olds there. If it was in US, I would think it was something like "xcel" kind of group. Just ask him what is this group, and what comes after, and if he thinks it's a good fit for your DD, or he had something else in mind for her.