Don't apologise for for stating you had a problem Karl, because as you can see everyone is in agreement with you.
This is what this forum is for, we all have information of one kind or another that we can share, good or bad, but if it makes a difference to the enjoyment of Arillias we should share it, then maybe it can be resolved.
I hope you have a happy outcome, if I had booked a minibus for my family full price, then had to share then a reduction would have been expected.
The fact that your seven year old daughter had to sit on your knee for the journey is completely unacceptable.
Val x