Guest checkout new account

Hello, thanks for your work on the plugin.
Whenever a customer makes purchase with guest checkout enabled and is redirected to the login/create account page, if they create a new account their order is not automatically linked to the new account. I have to tell them to copy the order number from the paypal email and enter it in the “don’t see your order” field on their orders page. Also they are only receiving an email from paypal; shouldn’t they be receiving an email from my site with a link to create an account?

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