Worst ever experience,

Worst ever experience,
The staff attitudes is very biast and rude, I was wearing shorts that slightly below my knees and its because of my religious requirements, but the staff stopped me and didn't allow us to swim because the shirts have to be higher then knees.
At the same time I saw some guys already wearing same length shorts already in the pool.
I find it very frustrating and totally unfair to us.
I don't understand the risk and no explanation was given to deny the entry to pool.
I will never go there again.