Have you tried getting a copy of your reports? Go to the bottom left of your reports page to 'generate report' - click on it, and it will open an excel spreadsheet which will show your sales and kdp pages read (if you're in Select) on different tabs.
Make sure you distinguish between orders and sales, because not all of the orders become sales, say, if the card payment is declined.
Are you expecting a check payment, or an electronic transfer to your bank? There's only a threshold if you get paid by check. For EFT payments, you get these monthly (60 days after the end of the month) regardless of the amount.