Ban spam WooCommerce orders (same email domain)

Hello,
I have problem that bot is creating fake orders from disposable email domain. It’s the same domain but with different emails.

I add your code to functions.php and tried make an order with my fake domain listed in Ban Hammer, but website allowed me to create that order.

Please, is your plugin able to prevent not only to register but to make an order? Site don’t allow to create an account, they are not that big and happy for every order.

Thank you very much for answer. I love your plugin and will translate it to Slovak.

The page I need help with: [log in to see the link]