I've never seen Kagi miss something blatantly obvious like that, so I echo sibling's suggestion to reach out to Kagi to investigate what's going wrong in your account.
Do you mind sharing more information about this on kagifeedback.org so that we can have a look?
Now it's just the price holding me back. I just refuse buy metered services. I've had unlimited bandwidth for years despite my usage consistently falling below the cheaper top limited usage download tier. I just don't want to think about usage — it's an unwanted distraction when something is critical to my workflow.
However, $25/mo is just too much for this service. I can see why they need to charge that at the moment due to economies of scale (or lack there-of). However, even $10/mo would be pushing it for this service.
$25/mo is a long way off the mark. Can buy a VPN, support an open source ad blocker, and have money spare to pay for a couple of streaming subscriptions each month.