The rules link goes to a checkout process meant for selling things, with the price set to zero. It has required-fields for billing address (even though it doesn

The rules link goes to a checkout process meant for selling things, with the price set to zero. It has required-fields for billing address (even though it doesn't collect actual payment information). Then it emails (to mailinator, in my case) an order confirmation email, followed by a separate shipping confirmation email (shipped to empty-string). It didn't send an actual download link, though.