When you sign up to MageFlow then you are automatically on a demo account. Demo account allows you to connect two demo instances and two own instances to MageFlow.
Our support team offers best-effort support to all users on a demo account :).
When you want to connect more instances, please contact us by filling out this form.
You can see your account summary and details inside MageFlow app when you select “subscription” from the accounts dropdown. To upgrade from there, click on “Contact us to upgrade your subscription” button and we’ll get back to you asap.