General ACCAMarks.

If you have passed your exam, that's really what you should be worried about. Marks really don't mean anything in the practical world, your employers are concerned with your passes which are just at 50. It may be that the way you presented your comments was vague, they couldn't extract more marks, or you wrote too much for too little. It could mean a lot of things really. Just learn from the way the examiner wrote it but only learn and not expect to be at that level, you can't copy that under exam pressure In your P level exams, worrying about marks is only going to give you more tension

does it matter?

A pass is a pass chill... there will be times when u will receive more than expected.