The Vanderbijlpark Magistrates Court has denied Tharina Human and Pieter van Zyl bail and granted Laetitia Nel bail of R25,000.
The trio are accused of kidnapping Amy Leign De Jager at Laerskool Kollegepark, in September 2.
The third accused Laetitia Nel,must report every Wednesday to Vanderbijlpark police station and to hand over her traveling documents as part of her bail conditions. She is also not supposed to contact or communicate with witnesses.
A fourth accused, Bafokeng Molemohi,has abandoned his bail application.
Magistrate Hussain Kotha said the court had to evaluate the "balance of probabilities based on facts" and the evidence brought before it.