The world most expensive English test.
Speaking and writing tests are highly depends on the marker's preference, so basically the results depend on your luck.
Getting 7 or 8 bands on each subject (Listening, Reading, Speaking, Writing) is the same situation that you roll 4 dices and get more than 5 or
6 on each
dice.
Some very unlucky
people spent more than $10,000 on that.