"Strictly for those applying to big4"
Please research the date you apply cos every big4 got different cutoff dates for promotion to absorb graduates at every level.
Why some reply fast or slow depends on this dates.

I think 19th November is a lil bit too late, as if I'm not mistaken, the new Dec batch commencement date is on the 1st of Dec. By right, you could've applied first and just let them know what you will be sitting for your last paper at the end of Oct, probably furnish them with your semester grades up-to-date for their evaluation.

Its quite hard to tell if your grades made it or not, quite judgmental I'd say. There's a lot more factors that they will consider when they process your application, e.g. extra-curicular activities, achievements/contributions to society etc...hence I believe it is not purely on your results alone.

ps: just fyi, i had a unimate who had a 1st class honours and still screwed up her interview at the end, so yeah.

Hope the 2 cents help