Unfair placement process

I app**** for admission for my son for grade 8 in 2025 at hoerskool oosterland in secunda the first week they opened applications that was May and I kept checking with them but they kept saying they still busy. On the 2nd of September they sent me a message to say my application was unsuccessful without any reasons as to why. I called and asked that they atleast put him in the waiting list and apparently the waiting list is full so they can’t. Strange enough there’s people who app**** well after I had app**** who got space so I don’t understand why my son was rejected