This feature is included in all plans.
When you want to receive a notification every time the survey was completed, you can turn on Email notifications. Enter your email address and the email address of colleagues who need to receive the emails as well.
Log in and head to the Extra Options tab. Scroll down to Other options and click Email notifications.
Now toggle to turn on send email notifications.
When it's turned on, click Add email and you'll be able to type in the email addresses. Click to add as many email addresses as you need. Make sure to Save changes when you're finished.
Here's how the email will appear: