with holding of matric certificate

I am a former student of glenvista high school. i matriculated in 2023 and the school has refused to give me my matric certificate or my results . Their reasons for giving me my matric certificate is 1. due to outstanding funds and 2. due to the fact that my father used to worked at certain company. It has been two years now, both my parents are unemployed and i have been stuck at home. they won't give my my results and matric certificate unless the full amount is paid, which effects me.