Is there any way I can do a test email?

If you are referring to notification and autoresponder, you can test them by submitting your form using your email. There are no other options available. 

Let us know if you have more questions.

Best,

Ok, I will try that!

I am referring to the payment setting. There is an option to send an invoice to the customer. I filled out the information to send an invoice once payment and form is complete. However, I would like to see what that invoice looks like and, if its being sent to my customers. Thank you

Hello,

I have checked your form, and I can see that you are using Stripe as your payment gateway. You can switch it to test mode to make a test submission and receive the invoice through email, but you would need to enable Test mode in your Stripe account too: https://stripe.com/docs/recipes/subscription-signup#using-test-mode 

You might find this guide helpful as well: https://wpforms.com/docs/how-to-test-stripe-payments-on-your-site/. 

Then you can use the information on these test cards to create a test payment: https://stripe.com/docs/testing#cards. 

However, if you would like to preview the invoice, you can view it through the PDF Editor page or the Payment Settings panel under the Invoice tab:

I hope this helps. Let us know if you need additional assistance.