What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I checked your jotform http://www.jotform.us/form/60512961522147 and I found that there is Shipping Cost setup on the form. This was the reason for the Shiiping amount charge on the Paypal payment.
You can remove the Shipping Cost option to remove the shipping charge on payment.
Let us know if this did not resolve the issue.