Cannot update the admin name. The mechanical tech support or articles are no help.

We changed the owner of our account.  She went in to manage the names and got everything except the admin changed from being a user to being the owner.  No matter what we do, following all the directions, we cannot ge the admin changed to the current admin.  It is remaining at the old admin, me.  The billing then got messed up.  Our treasurer paid and now Zoom is threatening to cut us off even though the bill has been paid.  Endless calls to the mechanized tech support doesn’t solve the problem.  I need a HUMAN being.  This is beyond the AI interface Zoom has built.