I purchased Trello business class on (4-23-2021) for an entire 12 month period.
Fast forward to today (4/30/2021), I received another bill for business class user access for an entire 12 month period without my permission or request.
I began to research why I was being billed for an additional user after finding no way to talk directly with support staff.
As it turns out, the gmail by cardbox B.O.T. was being recognized as a multi board guest therefore causing my account to be billed for an additional user without my permission and or any warning / alerts.
I have tried to reach out to Trello through contact support numerous times and it keeps deferring my request saying there is a problem accessing Trello's backend services therefore my ticket is not being created.