Boston Threats

So dissapointed in the way am threatened not to see my results. I have paid the school R20000 for the year,of which the total cost to my cost is R27000. They withholding my results until I settle...but it is not even second semester nor end of the year where they can say I.owe them....to my knowledge,they have R6500 that is due to me should I decide not to continue with them. Now time is running out for supplementary ,I am in distress I do not know what to do........