Unfair treatment

I wrote my Intermediate Macroeconomic exam on the 20th of May. On the 25th of June results was released via SMS confirming I have passed the subject which in turn I resorted to viewing my results on the Milpark website and it stated the same. The 10th of July I received an sms stating that they re-registered me for the very same subject. I was under impression that it was an error. I then received on the 15th an sms again stating this and this started to worry me. I logged onto their website again and my results was amended. They sent me an email on Mymilpark email stating that the room was not scanned correctly. What I fail to understand is how do you release results on the 25th of June I pass and 10 days later change my results. I am very disappointed and that an institution of their stature would display this type of integrity. How many students like myself does not experience the same. As a student you pay so much money and get treated this way. I will taking this futher to higheat level authority and make this known as I feel that a am being treated unfair.