Where is the Student Care? Have you tried checking out with the Student Care operator? They may be able to advise?
I used the service of this bus driver before, between Eunos and Telok Kurau. It's a school van, always operated with an auntie. They are a lovely bunch of people and had served at my child's kindergarten for more than ten years. But it has been a few years, so I don't know if the number is still the same and if he's still operating. He used to provide customised service too.
Bus Uncle Soh (alternates with an Uncle Lim) 90226287