It's taken over a month for nearly everyone - you shouldn't worry, you got your AOR. That's important.
My next update took nearly 5 weeks.
My advise is not worry about expected timeframes and just trust that it's going to happen unless there is some sort of major issue (which I doubt mostly...
I actually got an email ... but it was about 8 or so days later. However, like you said, the tracker becomes available in the days after your AOR email. You just sign up using the details in there, and at some point you'll have access.
I have no idea to be honest - I just added mine just in case people were sharing and wanted to analyze that part some. I know I would if I had more data (and it would probably be random)