@Daydreamscometrue I recall that reference to what the receptionist said (I think that both you and @Asham commented on it)but just find it surprising on quite a few levels - not only what I mention above but also that their own website refers to having usually 80-90 places. Anecdotally, there were some 10 kids there from my DD's (small) prep school.
Do not get me wrong - I am not questioning the poster conveying the conversation with the receptionist but it might be a question of the receptionist not necessarily being fully sighted or, on their willingness to 'palm people off' finding an easy route out.
And to reiterate, I would love for those numbers to be true because they would be more favourable than what I am (and most parents) are expecting.