Release domains from closed account

We closed our account with Zoom last November (2025) and the domains were not released. Now I need to release the domains in a closed account but that has to be done with support on the line. I can’t contact support because the account is closed. The chat bot can’t help, and tells me to contact support. When I call support I’m told there is no phone support on the account. I’m in a vicious circle here. 

How does one contact support without an active account?