ʌntˈɪl tˈuː θˈaʊzənd, wˌɛn ðə kˌɑːmpətˈɪʃən ˈækt nˈaɪntiːnhˈʌndɹɪd nˈaɪnti ˈeɪt dɪsplˈeɪst ðə ɹᵻstɹˈɪktɪv tɹˈeɪd pɹˈæktɪsᵻz ˈækt nˈaɪntiːnhˈʌndɹɪd sˈɛvənti sˈɪks, ðə pɹˈæktɪs wʌz lˈɔːfəl, æz ðə skˈuːlz wɜːɹ ɛɡzˈɛmpt fɹʌmðɪ ˈæntaɪkɑːɹtˈɛl lˈɔːz ðæt ɐplˈaɪd tə bˈɪznəsᵻz.
Until 2000, when the Competition Act 1998 displaced the Restrictive Trade Practices Act 1976, the practice was lawful, as the schools were exempt from the anti-cartel laws that applied to businesses.