Multi site subdomains I create in admin not defaulting as free, How to fix?

1. The multi site subdomain site that I made to test to be sure it was working won't let me access the front of it until I pay. But shouldn't it default to free?
How do I make the subdomains default to free and then people upgrade?
I know it should default but the sites I'm setting up are not defaulting.

2. How do I set up 20 template sites without needing 20 email addresses?
I'm setting up 20 templates each with a different theme ready to go. But each time I have to use a new email address. So I need 20 email addresses?

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