As Arthur says...the pass mark of 75% is very high compared to most UK exams which are normally around 50%. Another unfair aspect is where a question requires 2 answers you dont get awarded any points for 1 right answer aND 1 WRONG.
Also how can they justify an increase from £34 to £50 to sit the exam?
Gladly my wife has passed already but I still think its our duty as UK citizens to challenge something if its wrong for the benefit of others that still have to take the test.
I agree with Arthur that this test is no walkover and contains plenty of stuff irrelevent to life in the uk. Just look at some of the questions online.