600 words?!! 300 words?!! You write 900 words on 400 word tasks and score an 8. So what happened to that advice which said never write extra as that will give them a chance to find mistakes? Let me guess, it was a computer based test?
You are not the first one. I have been hearing from a number of people scoring high on writing that they wrote well beyond the word limit. But what happened to the advice all IELTS teachers have been giving us? This is becoming more complex by the day.
I wrote 320 words on my last attempt but then deleted some sentences to bring it below 300. But that may have left my essay underdeveloped.