Filming permission

The school I have contacted has given me the persmission to film on the premises with the exception that my filming does not falsely portray the morals of the school or just generaly make the school look bad. They also said that there are exams goin on at his time so the hall will be set up with desks and chairs, however I have notified them that this would not be an issue as the set will require the hall to be set up like this anyway. I have lately had to cancel a date and time due to the fact that many of the cast could not make the set date, hopefully the 21st will be an ideal time for everyone. I have been told that the school has not changed since I have left so I do not think that a recce would be nessecary.