The terrible high school ever!!

I have a question maybe someone might have a better idea of how we can handle this situation. My little brother is doing Grade 10 @ Sivananda Technical High school , he started last year since we could no longer afford his previous school. So he went to continue @ Sivananda, they took him but every term he never got his report card since they said he wasn't yet registered until we went to school bathi we should wait. We waited until the last term still same issue, they said ''he's not registered'', my question is, how can the year end but still a learner is not registered? Okay the thing is that my mom was angry and felt like she wasn't taken serious by the teachers since she's been up and down but still she wasnt attended... mind you I personally repeated grade 8 and when I was in grade 9 I was told there was a mistake and I wasn't supposed to repeat, they said it was a system issue. So my mom was very disappointed by this on that time. Now we dealing with almost the same issue. So last term last year they said my brother will get his results in January. Then January passed by they said he failed, but still we asking for the results they not giving us. We are not denying "Not Promoted" all we want is the report card but we never got it even today. Then they said he actually failed Life Orientation because he didn't write it, when my mom went to school to ask his previous classmates if he wasn't there on this day, they said he was there. we asked for the register that was signed on the day of the Life Orientation exam, they said unfortunately his class teacher is no longer with the school so they cannot provide us with that. Okay fine, we asked for other exam papers but still until today they not giving them to us. We were told to write a formal letter regarding this issue... we did, they said they will be in touch with the Executives but still nothing. They ended up saying "He is not a well behaved child" we don't know if that is suppose to mean that he can't have his report card because of that? What can we do to get this resolved, all we want is to know what is next? And if he really failed. Who should we get in touch with?