I have read after 30 days listed royalties "drop" off your chart, but you do still get them, correct? You don't forfeit them just because you didn't reach the threshold for that month, do you? And even though they track each type of sale separate, paperback/ebook, do you have to make threshold in each or is it a combined total. Also, does it simply continue to accrue until you reach threshold and you simply get paid once it has, say it takes as long as 3 months or so to reach threshold?
The chart on your report is a 30 day chart, and it does what it says on the box. If you want to see slightly different dates, or a 90 day report, just change the dates by using the drop-downs.
But this is just a snapshot in a pretty picture. If you want to see a more in depth analysis, just click on one of the other tabs - Historical, month to date, payments etc. They do what you'd expect as well.
If you want to see it all in spreadsheet format, click on Generate Report, bottom left.
Your payments are nothing to do with the pretty graph, in the sense that you will always get paid a calendar month at a time, roughly 60 days after the month ends, usually on the 29th. So as September ended yesterday, you can expect to receive payment on or around 29th November. This applies if you receive your payments electronically. If you are waiting for a check, you have to wait for your royalties/kenp in each territory to reach $100 or £100. If they don't hit that this month, they'll effectively roll over.