Hey Luke,
At this time you cannot pull in private or unlisted Eventbrite events. This is because Eventbrite itself keeps these events from being accessible via its APIs, which third-party software like our own Eventbrite Tickets plugin use to find events. So we cannot access private EB events at all from within our code, and you cannot import them with the plugin 🙁
As for payments, I admit to not knowing with 100% certainty what you’re referring to. If it’s something about Eventbrite’s payments systems specifically, your best option is to contact Eventbrite support directly about these questions. From what you wrote here, though, it sounds like you’re curious about whether Eventbrite offers only one of the payment options you listed, or if it offers both; in which case, in my understanding of things, PayPal is offered as the universal default. I believe that some accounts from there are then allowed to use Google payments, and/or that you can activate Google payments yourself with verification.
— George