From what I'm led to believe, on each stage, if it's a definite 'yes', it takes about 4/5 days, same for a definite 'no', if you're borderline there is a further papersifting process, which can take longer. The guys and girls are, I hear, rather swamped with applications at the moment so I guess this may be taking the process a little longer to sort. Don't lose hope just yet.