Driving licensed test

So I went to Milnerton traffic department yesterday for my driving test... I was met by an instructor who seemed rather "cross" he didn't even greet. All he said was to do Pre trip inspections...inside I mentioned all that needed to be mentioned and as I was mentioning the stuff on the outside he just started walking away...I didn't bother to chase him because he is supposed to be by my side so that he hears what I am saying...to my surprise he marks me down for things I had said... So before I jump in the car he says " if you don't listen to me you are going to fail" I was astonished by the comment because so far I had been doing as told by him.... So we start off with the left turn , I do my observations , indicate , check my blind spots , turn in whilst looking at my mirrors aware of the solid lines...at this time he is in the truck he seemed distant as he was just looking out of the window.... We head for alley docking, he tells me again with a rather intimidating tone that "you have one chance to do this , if you hit poles curbs etc the test is over" so I'm a bit anxious at this point...what did I do to this guy?! I don't know ...so I soldier on , I do my half observation, I forget to indicate , I put the car in gear I do my full observation and reverse in... Remember he is still in the car...after the last obstacle he pulls me over to the side, he tells me that I didn't observe by the left turn, I just did my own thing and turned , he proceeded to say that I didn't observe or indicate during the docking whilst the observations I did and didn't indicate..ok..he then proceeded to say "tell me honestly you have been driving before taking lessons because I can see you know how to drive, have you been *****ing cars and teaching yourself" I was shocked cause what he was asking now had nothing to do with the test... I tell him yeah my brother did teach me a bit but why is it that he is marking me down for actions I took?? He then said "it was just you and me in the vehicle that doesn't matter "and if I want to take it up with the department it will be his word against mine... He then said "just sign and go book again".....

I don't know how many people have recieved such treatment but the station manager didn't do much about the situation