I am going to write a letter of complaints to the school and WILL be invoicing them for wasting my time and money because of their incompetance. I doubt they will pay but that is what balifs are for
Well, if this is what you want to do, then go for it ... but it seems to me to be 'good time after bad'. Plus (fairly or unfairly) you'll develop a reputation as someone who is 'difficult' ... and aviation tends to be a very small community.
Excellent advice from Chilli Monster. When you run into unreasonable or unprofessional people, cut your losses and move on. There's a lot of wisdom in the old saying: 'if you wrestle with a pig, you just get dirty, and the pig enjoys it'.