Webpay for CA tax return not allowed owing to absence of previous records

Following a link on the web pay site for Help with bank account payments, there is this FAQ:

If you never filed a California personal income tax return and owe tax

You must contact us for help. Have your California Driver License or California ID number available. You will not get to use some Web Pay features until you’ve filed a tax return.

The "contact us" link just sends you to a generic Help website where I assume you need to try to call or chat with FTB agents.

I wondered if you could sign up for a myFTB account but it also appears to require a previous tax return.