I applied (and got acknowledgment on the same day) on the 25th of October for the Writing Section (6.5 needing 7).
I spoke to the IDP center yesterday (Auckland - NZ) and there is indeed an unusual delay on the October EOR's, they're not quite sure what's going on but it might be due to the amount of results released recently (during the same time frame for 1 PBT, there are 2 or 3+ CBT now) and the consequent increase in the volume of remark requests. Not sure if that's true or not but the lady I spoke to, told me that it was quite common to receive fast results in Australia - NZ and now are starting to get significant delays...
I got the 2-21 days email but I'm not sure if that's a realistic time any more...
Nevertheless, I think we are all here on the same boat and I truly wish the best for all of you waiting response as I am. Once I have a reply I'll let you know.
Stay positive! is all we can do