Instead of asking if everything was okay, and could they do something for them, Alex should have said something like: "Hi, are you actually a startup? Because

Instead of asking if everything was okay, and could they do something for them, Alex should have said something like: "Hi, are you actually a startup? Because with a regular business account you're missing out on a lot of money. I would very much like to schedule a few minutes with your CFO and talk over what could be done." Maybe he bites maybe he doesn't, but he's no longer so naïve.