Set up new hacky non-automated payment flow... very un-SaaS-like
Customer joins queue via queue form → I get notified via email → I email them payment link and confirm user handle (esp. if unavailable) → customer pays → redirected to thank you page → I get notified of payment → I create Google Sheet + link-in-bio page → I grant customer access to Sheet + editing permissions → customer logins, edits Sheet to customize their own link-in-bio page → END