I keep picking an Email Lists but does not save it

@rcstudios I hate to say this, but I can’t really recommend that you use this plugin at this point.

I no longer have a Robly account I can use for testing, this hasn’t been updated for several major versions of WooCommerce changes, and there are some hardcoded custom fields that will put user data in places you may not expect: https://github.com/macbookandrew/woo-customers-robly/blob/master/woocommerce-customers-robly.php#L411-L420

If you can find a developer who can fix the issues for you, I’d be happy to incorporate the changes into the plugin for other users as well at https://github.com/macbookandrew/woo-customers-robly.

Thank yo so much for your reply and honesty.
Have a great day!