Hi Alessandro Pinto •,
Welcome to Microsoft Q&A forum.
As I understand, you want to know about Azure Database for MySQL Flexible Server which is stuck and about it's billing.
Could you please check the current status of the Server using Azure Portal or Azure CLI?
Show database 'testDatabase' in the server 'testserver':
az mysql flexible-server db show --resource-group testGroup --server-name testserver --database-name testDatabase
Again, try to delete:
az mysql flexible-server delete --resource-group testGroup --name testserver
Also note that Start/Stop operation is Not supported with read replica configurations (both source and replicas).
This could be a transient issue as there could be internal management jobs happening on the server.
If your server is still stuck and you could not create a new one, I would recommend you to please file a support ticket for deeper investigation and in case if you don't have a support plan, do let us know here so that we can check on other options to unblock you.
Thanks