I'm trying think through what billing challenges or pitfalls there will be with the new pricing when using Trello for consulting work with multiple external businesses.
If the Trello accounts on my domain, let's call it <mydomain-A.com> all have Premium subscriptions. And we invite Guests from another domain, say <theirdomain-B.com> to multiple boards then that causes those Guest accounts to become billable to our account <mydomain-A.com>.
But what if Guests at <theirdomain-B.com> already have their own paid Standard or Premium accounts? Will they be billed a 2nd time to the account @ <mydomain-A.com>? Or since they already have paid accounts, will they be able to join boards as guests with no additional billing needed?
Finally, assuming there is no double billing. Then what happens if guests invited to multiple boards in our Workspace, that have their own paid subscriptions, then cancel their paid subscription? This would cause them to become billable again. Would there be any kind of warning in our account that those guests would start being billed to our account? Would they just lose access to those boards? etc.
