This figure lives inside your analytics panel, so the check needs screenshots of an identical date range.
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Unlike a count under a post, this figure lives inside the analytics panel of your own account. Two consequences follow. Verification needs access to that panel rather than a signed out browser. And the result is invisible to everyone except you and whoever you show it to, which is worth deciding how you feel about before spending anything larger.
The panel also aggregates over a period and lags. A small addition often takes a day to appear and may then sit inside ordinary movement, so patience here is part of the method rather than an inconvenience.
Screenshot the relevant figure before ordering with the date range visible, and take a second screenshot with the same range afterwards. Comparing two different ranges is by far the most common way people convince themselves that nothing happened when something did.
Short answers to what people ask most before ordering.