Is it ok for an examiner to hide exam reviews We recently had our final exam for our bachelor degree and most of us haven't passed it, despite all the hard work we've put into it and the difference in our expectations for the results.

We asked for the reviews of the exams so that we can be better prepared for the next time we attend the exam, but we were declined that right with no clear explanation why. We presented our concerns regarding the the really short time the examiners were able to review the exams (it took them less than 2 days for the works of all the students graduating this year), in which some of the examiners responded with shouting in a really unacademic and aggressive manner.

We also heard about graduates who have had the same problem 2 or 3 years ago, and after making a little noise about it, their assessments have drastically changed in a positive way.

In the rules of our university, there isn't anywhere a rule for not giving review on the examined works, so we have sent a request to the rector of the university for letting us see the reviews of the exams, but we haven't received an answer yet.

My question is, is it ok for the examiners to hide the reviews of our works, and what can we do so that we get to the bottom of this?
My personal view is that you should be able to get feedback on your exam, though that doesn't necessarily imply getting a marked-up copy of it. But that is a personal view and whether there are rules or not at your university, the personal views of your professors hold more weight than mine. 

It may be that there is some fear that giving you this material will make future use of the questions impossible - security through obscurity.  

But what is OK in one place is forbidden in others. 

But you are more likely to be successful if you ask for feedback on your performance. It is hard to argue that you are not entitled to that. 

I doubt that there is fear that you have been too harshly judged in the grading, but there may be a reluctance to do anything that might generate such a charge. 

But, as you are aware, without feedback you have no way forward other than blindly guessing. 

One possibility is that your grades are being reviewed by a higher authority and so there is a delay. If making a bit of noise has been effective in the past, you might be able to successfully call for a higher level review without seeming like malcontents.