I feel your pain. I went through all this about 6 weeks ago. It took them 7 weeks to sort it all out and get my NBN up and running. I had a rant on their Facebook page and threatened to go to ombudsman and that kicked them into gear.
Make sure you get them to throw in the 100/40 speed boost for free for messing you around. I got it and so have several other people I know.