Planet Fitness incompetence

Planet Fitness have shown a level of incompetence I’ve never seen before. They really have no idea what they are doing. I started off with a Vitality contract, paying R220 a month. Then, due to the fact I am a teacher at a school that has an agreement with PF, whereby teachers are offered free membership, I tried getting my profile changed to my school profile. My first time speaking to the Sales Manager at my branch was the 4th March. Nothing was resolved. After a few temper tantrums from my part the issue was ‘resolved’ and I was moved over to my school profile. April, they said, would be my last debit order and then after that I’d be on my school profile and would not be charged. So imagine my surprise when I wake up on Sunday morning to find I’m actually now paying full membership. All that’s been done is my Vitality has been removed off my profile. I really have no idea what to do. Planet Fitness have to be one of the most useless companies I’ve ever dealt with. Anyone have any idea what I can do?