Is There Any Other Way Than Client Billing Migrating to Bonsai?

Hi guys,
As webflow is going to stop the client billing service, they suggest using Bonsai.
I was in the process of following the steps how-to on the University channel, I,ve got a question, if I create the billing to my client, is the bill going to pay directly to Webflow? Because I don’t charge additional fee on my client’s bill and it’s only CMS site fee they pay.

Second question, for the other client I pay it my self for CMS site and the client pay it to me. but if I invite them to be a collaborator of the project, can they pay the bill as well?

thanks in advance for your help!