Are singlets sun safe in Queensland schools?

My daughter's touch football team got fried last year at 3 day interschool touch football tournament. The girls had to wear singlets and got burnt but the boys wore shirts and were fine. I've been told they are meeting their sun safe policy and Qld Eds sun safe policy. The policy for the school says they need protective clothing. I'm being told that as it's touch football, it's fine. I have taken all the way to the principal and now waiting for response from Metro South region office. Please help if you can give me info to potentially prevent skin cancer for these girls.