Level 1 subscription of 0 dollars


I use pro sites for my multi site.
I have set up 3 levels (no free level) but level 1 is 0 dollar a month (so basically free).
No payment gateways are set up because I'm dutch and we don't use PayPal.

You can check the screenshot in the attachment. What will happen after the 21th of august to this level 1 subscription?

I want this to just this to stay a level 1 automatically and nothing happens after the 21 of august. If it just renews because of the manual payment, that's ok!

Let me know , thanks!