To your site to set the receipt_email address to use the primary registrants email, you can add that to a custom functions plugin on your site and we have some documentation on creating one here:
The support post ‘Streipe Gateway: No receipts sent – No email address for this payment’ is closed to new replies.
Have a question about this support post? Create a new support post in our support forums and include a link to this existing support post so we can help you.
Support forum for Event Espresso 3 and Event Espresso 4.