Hi - From the screenshot that you have shared it appears that you have selected the Amount field for the To email option in the Notify respondent setup. That's why the confirmation emails are not sent to the respondents when they submit the form. Login to Neartail > click on the form to open it > Edit page will be displayed > click Orders > In the Orders page, click on the three dots more icon next to the Submitted status > click Notify respondent > setup wizard will be displayed > select the email address field from the dropdown for the "Who should receive email notification?", click Next and follow the promtps to complete the setup. You can then submit a response and test the form.