"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.
Other than that, it's not clear from this story why they chose Silicon Valley Bank - it sounds like this VP of Finance is the person who could explain what (if anything) they did better than Chase.
The usual emails of credit cards, better interest on savings (money sat in the account for nothing) or others if it didn't happen?
At least from the recount there was no mention of e.g. we realised you're a big customer and we have some special packages for you. Services like AWS would immediate assign an account manager, want to know you more and offer training, assistance and all sorts of things and not just when you make a transfer.