Also arbitrarily decline companies the ability to be merchants because their customer service rep in Nebraska doesn't know what "SaaS" means.
Isn't that illegal?
They want to confirm your identity.
I get that, but I thought that CAN-SPAM required one-click unsubscribes.
I'm pretty sure you're right. Laws are like traffic lights: nothing is actually physically preventing you from driving through red lights, it's just that you might get in trouble if you do it. "Might" being the operative word. (And there are a lot more traffic cops than spam cops.)