Here's how you can send yourself a test receipt:
Navigate to your dashboard, and click Ticketed Events in the menu on your left. Then, click Manage on your event.
Next, click Settings on the left side menu. Now select the Advanced tab at the top of the page. Here you will see a Custom Receipt Message box. Compose a message to your donors that will be included on every receipt! When you're finished, click Send yourself a test and an example receipt will be sent by email!
This can be done unlimited times until you are happy with the final result!