How to remove credit card fields if they are using a coupon?

We are using a form for event registration. We offer many coupons to people registering, and often these change the fee to $0. Is there a way to hide the credit card input if they do not owe anything? I have looked in the conditions and cannot find a way to hide this. 

Unfortunately, this is not possible because the coupon field is already in the payment field. However, you can check my workaround.

Here's the demo form: https://form.jotform.com/80705370524957

In the demo form, I added a Single Choice option and I used the Show/Hide condition. You can clone the demo form so you can check the condition settings. 

Here's a guide: How-to-Clone-an-Existing-Form-from-a-URL

Here's the result:

I hope this information helps. Please contact us again if you need further assistance.

Thank you, John! This worked like a charm.