Kicked off of our Premium Account, Personal Meeting Room Number Gone, but Payments always on time

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We've had a premium account for years and a personal meeting number, and we are all over the world and rely on Zoom.  We pay automatically each month, and all payments are up to date.  We go into Zoom to start an incredibly important meeting today, and our meeting id is gone, they've replaced it with a free account id, the history is gone from the account, and I can't use support because it claims I have a free account and does not recognize either our old personal id or our new one.  Help!  My claim email sent is classified as low priority, and we are losing thousands a day because of this.  It is quite an emergency for us.  What do I do?